#3
VGC Regulation Set M-C
VR October Challenge
3 October · 14:00 UTC · Online · view on Battlefy · more info
384
Players
47
Countries
11
Swiss rounds
12
Top cut
$384
To the pot
Usage is the share of teams that bring each Pokémon; win rate counts the games those teams played in the selected phase, without byes. Conversion is the share of the teams with that Pokémon that made it to that phase. Click a Pokémon to see its items, abilities, natures and moves, and the teams that brought it. 3 players without a known team are not counted.
All rounds
98 Pokémon · 381 teams| # | Pokémon | Usage | Win rate |
|---|---|---|---|
| 1 | 54.9% |
49.6%646–657 | |
| 2 | 52.5% |
51.0%669–642 | |
| 3 | 43.8% |
49.7%532–538 | |
| 4 | 35.4% |
50.7%459–446 | |
| 5 | 34.1% |
48.0%376–407 | |
| 6 | 30.2% |
45.6%300–358 | |
| 7 | 26.2% |
51.7%341–318 | |
| 8 | 21.3% |
52.6%284–256 | |
| 9 | 19.2% |
47.0%207–233 | |
| 10 | 16.5% |
54.9%237–195 | |
| 11 | 16.5% |
44.6%169–210 | |
| 12 | 15.5% |
46.2%163–190 | |
| 13 | 14.2% |
51.8%176–164 | |
| 14 | 11.8% |
58.0%188–136 | |
| 15 | 11.8% |
47.4%128–142 | |
| 16 | 10.8% |
46.9%115–130 | |
| 17 | 10.2% |
44.2%95–120 | |
| 18 | 8.7% |
55.1%119–97 | |
| 19 | 8.4% |
55.3%121–98 | |
| 20 | 8.4% |
50.7%106–103 | |
| 21 | 8.1% |
52.0%106–98 | |
| 22 | 7.3% |
51.7%89–83 | |
| 23 | 7.3% |
51.4%94–89 | |
| 24 | 7.1% |
47.7%82–90 | |
| 25 | 6.8% |
45.2%66–80 | |
| 26 | 6.3% |
52.8%85–76 | |
| 27 | 5.8% |
57.3%90–67 | |
| 28 | 5.5% |
44.6%54–67 | |
| 29 | 5.5% |
44.3%58–73 | |
| 30 | 5.2% |
52.2%72–66 | |
| 31 | 5.2% |
50.4%64–63 | |
| 32 | 5.2% |
49.6%59–60 | |
| 33 | 5.0% |
48.7%55–58 | |
| 34 | 4.7% |
52.3%67–61 | |
| 35 | 4.2% |
43.8%39–50 | |
| 36 | 3.7% |
50.5%46–45 | |
| 37 | 3.4% |
55.6%45–36 | |
| 38 | 3.1% |
57.6%57–42 | |
| 39 | 3.1% |
43.9%29–37 | |
| 40 | 3.1% |
42.9%30–40 | |
| 41 | 3.1% |
39.4%26–40 | |
| 42 | 2.4% |
53.4%31–27 | |
| 43 | 2.1% |
30.6%11–25 | |
| 44 | 1.8% |
57.4%27–20 | |
| 45 | 1.8% |
47.2%17–19 | |
| 46 | 1.8% |
42.5%17–23 | |
| 47 | 1.6% |
57.5%23–17 | |
| 48 | 1.6% |
43.2%16–21 | |
| 49 | 1.3% |
69.0%29–13 | |
| 50 | 1.3% |
54.8%23–19 | |
| 51 | 1.3% |
50.0%18–18 | |
| 52 | 1.3% |
44.8%13–16 | |
| 53 | 1.3% |
34.6%9–17 | |
| 54 | 1.0% |
55.6%15–12 | |
| 55 | 1.0% |
51.5%17–16 | |
| 56 | 1.0% |
44.0%11–14 | |
| 57 | 0.8% |
65.4%17–9 | |
| 58 | 0.8% |
57.1%12–9 | |
| 59 | 0.8% |
47.1%8–9 | |
| 60 | 0.8% |
42.9%6–8 | |
| 61 | 0.8% |
40.0%4–6 | |
| 62 | 0.8% |
38.9%7–11 | |
| 63 | 0.5% |
68.4%13–6 | |
| 64 | 0.5% |
53.8%7–6 | |
| 65 | 0.5% |
53.3%8–7 | |
| 66 | 0.5% |
45.5%5–6 | |
| 67 | 0.5% |
38.5%5–8 | |
| 68 | 0.5% |
37.5%6–10 | |
| 69 | 0.5% |
37.5%3–5 | |
| 70 | 0.5% |
33.3%4–8 | |
| 71 | 0.5% |
33.3%4–8 | |
| 72 | 0.5% |
25.0%2–6 | |
| 73 | 0.5% |
16.7%1–5 | |
| 74 | 0.5% |
11.1%1–8 | |
| 75 | 0.5% |
11.1%1–8 | |
| 76 | 0.3% |
71.4%5–2 | |
| 77 | 0.3% |
66.7%6–3 | |
| 78 | 0.3% |
63.6%7–4 | |
| 79 | 0.3% |
62.5%5–3 | |
| 80 | 0.3% |
62.5%5–3 | |
| 81 | 0.3% |
57.1%4–3 | |
| 82 | 0.3% |
50.0%1–1 | |
| 83 | 0.3% |
50.0%3–3 | |
| 84 | 0.3% |
50.0%2–2 | |
| 85 | 0.3% |
50.0%4–4 | |
| 86 | 0.3% |
40.0%2–3 | |
| 87 | 0.3% |
37.5%3–5 | |
| 88 | 0.3% |
28.6%2–5 | |
| 89 | 0.3% |
28.6%2–5 | |
| 90 | 0.3% |
25.0%1–3 | |
| 91 | 0.3% |
25.0%1–3 | |
| 92 | 0.3% |
25.0%1–3 | |
| 93 | 0.3% |
25.0%1–3 | |
| 94 | 0.3% |
25.0%1–3 | |
| 95 | 0.3% |
16.7%1–5 | |
| 96 | 0.3% |
16.7%1–5 | |
| 97 | 0.3% |
16.7%1–5 | |
| 98 | 0.3% |
0.0%0–3 | |
Swiss
98 Pokémon · 381 teams| # | Pokémon | Usage | Win rate |
|---|---|---|---|
| 1 | 54.9% |
49.5%640–652 | |
| 2 | 52.5% |
51.0%662–635 | |
| 3 | 43.8% |
49.7%527–534 | |
| 4 | 35.4% |
50.7%455–442 | |
| 5 | 34.1% |
47.9%372–405 | |
| 6 | 30.2% |
45.5%297–356 | |
| 7 | 26.2% |
51.9%341–316 | |
| 8 | 21.3% |
52.3%279–254 | |
| 9 | 19.2% |
47.1%206–231 | |
| 10 | 16.5% |
54.7%231–191 | |
| 11 | 16.5% |
44.7%169–209 | |
| 12 | 15.5% |
46.4%163–188 | |
| 13 | 14.2% |
51.8%173–161 | |
| 14 | 11.8% |
57.8%185–135 | |
| 15 | 11.8% |
47.4%128–142 | |
| 16 | 10.8% |
46.9%115–130 | |
| 17 | 10.2% |
44.1%94–119 | |
| 18 | 8.7% |
55.2%116–94 | |
| 19 | 8.4% |
55.6%120–96 | |
| 20 | 8.4% |
50.7%106–103 | |
| 21 | 8.1% |
52.0%106–98 | |
| 22 | 7.3% |
51.8%87–81 | |
| 23 | 7.3% |
51.6%94–88 | |
| 24 | 7.1% |
47.3%80–89 | |
| 25 | 6.8% |
44.8%64–79 | |
| 26 | 6.3% |
52.6%82–74 | |
| 27 | 5.8% |
57.4%89–66 | |
| 28 | 5.5% |
44.6%54–67 | |
| 29 | 5.5% |
44.3%58–73 | |
| 30 | 5.2% |
52.9%72–64 | |
| 31 | 5.2% |
50.4%62–61 | |
| 32 | 5.2% |
49.6%59–60 | |
| 33 | 5.0% |
48.7%55–58 | |
| 34 | 4.7% |
52.8%67–60 | |
| 35 | 4.2% |
43.8%39–50 | |
| 36 | 3.7% |
50.5%46–45 | |
| 37 | 3.4% |
55.6%45–36 | |
| 38 | 3.1% |
57.6%57–42 | |
| 39 | 3.1% |
43.9%29–37 | |
| 40 | 3.1% |
42.9%30–40 | |
| 41 | 3.1% |
39.4%26–40 | |
| 42 | 2.4% |
53.4%31–27 | |
| 43 | 2.1% |
30.6%11–25 | |
| 44 | 1.8% |
57.4%27–20 | |
| 45 | 1.8% |
47.2%17–19 | |
| 46 | 1.8% |
42.5%17–23 | |
| 47 | 1.6% |
59.0%23–16 | |
| 48 | 1.6% |
43.2%16–21 | |
| 49 | 1.3% |
71.1%27–11 | |
| 50 | 1.3% |
54.8%23–19 | |
| 51 | 1.3% |
51.4%18–17 | |
| 52 | 1.3% |
44.8%13–16 | |
| 53 | 1.3% |
34.6%9–17 | |
| 54 | 1.0% |
55.6%15–12 | |
| 55 | 1.0% |
53.1%17–15 | |
| 56 | 1.0% |
44.0%11–14 | |
| 57 | 0.8% |
68.0%17–8 | |
| 58 | 0.8% |
57.1%12–9 | |
| 59 | 0.8% |
47.1%8–9 | |
| 60 | 0.8% |
42.9%6–8 | |
| 61 | 0.8% |
40.0%4–6 | |
| 62 | 0.8% |
38.9%7–11 | |
| 63 | 0.5% |
68.4%13–6 | |
| 64 | 0.5% |
53.8%7–6 | |
| 65 | 0.5% |
53.3%8–7 | |
| 66 | 0.5% |
45.5%5–6 | |
| 67 | 0.5% |
38.5%5–8 | |
| 68 | 0.5% |
37.5%6–10 | |
| 69 | 0.5% |
37.5%3–5 | |
| 70 | 0.5% |
33.3%4–8 | |
| 71 | 0.5% |
33.3%4–8 | |
| 72 | 0.5% |
25.0%2–6 | |
| 73 | 0.5% |
16.7%1–5 | |
| 74 | 0.5% |
11.1%1–8 | |
| 75 | 0.5% |
11.1%1–8 | |
| 76 | 0.3% |
71.4%5–2 | |
| 77 | 0.3% |
66.7%6–3 | |
| 78 | 0.3% |
63.6%7–4 | |
| 79 | 0.3% |
62.5%5–3 | |
| 80 | 0.3% |
62.5%5–3 | |
| 81 | 0.3% |
57.1%4–3 | |
| 82 | 0.3% |
50.0%1–1 | |
| 83 | 0.3% |
50.0%3–3 | |
| 84 | 0.3% |
50.0%2–2 | |
| 85 | 0.3% |
50.0%4–4 | |
| 86 | 0.3% |
40.0%2–3 | |
| 87 | 0.3% |
37.5%3–5 | |
| 88 | 0.3% |
28.6%2–5 | |
| 89 | 0.3% |
28.6%2–5 | |
| 90 | 0.3% |
25.0%1–3 | |
| 91 | 0.3% |
25.0%1–3 | |
| 92 | 0.3% |
25.0%1–3 | |
| 93 | 0.3% |
25.0%1–3 | |
| 94 | 0.3% |
25.0%1–3 | |
| 95 | 0.3% |
16.7%1–5 | |
| 96 | 0.3% |
16.7%1–5 | |
| 97 | 0.3% |
16.7%1–5 | |
| 98 | 0.3% |
0.0%0–3 | |
Day 1
98 Pokémon · 381 teams| # | Pokémon | Usage | Win rate |
|---|---|---|---|
| 1 | 54.9% |
49.5%602–615 | |
| 2 | 52.5% |
51.0%618–594 | |
| 3 | 43.8% |
49.6%498–506 | |
| 4 | 35.4% |
51.2%432–412 | |
| 5 | 34.1% |
47.7%354–388 | |
| 6 | 30.2% |
45.2%289–350 | |
| 7 | 26.2% |
52.4%319–290 | |
| 8 | 21.3% |
52.3%260–237 | |
| 9 | 19.2% |
47.1%198–222 | |
| 10 | 16.5% |
54.6%213–177 | |
| 11 | 16.5% |
45.2%163–198 | |
| 12 | 15.5% |
46.3%156–181 | |
| 13 | 14.2% |
51.7%163–152 | |
| 14 | 11.8% |
58.6%171–121 | |
| 15 | 11.8% |
48.5%126–134 | |
| 16 | 10.8% |
47.9%112–122 | |
| 17 | 10.2% |
43.6%89–115 | |
| 18 | 8.7% |
54.6%106–88 | |
| 19 | 8.4% |
56.3%112–87 | |
| 20 | 8.4% |
51.8%102–95 | |
| 21 | 8.1% |
53.1%102–90 | |
| 22 | 7.3% |
50.3%86–85 | |
| 23 | 7.3% |
50.0%78–78 | |
| 24 | 7.1% |
47.5%76–84 | |
| 25 | 6.8% |
43.7%59–76 | |
| 26 | 6.3% |
51.7%74–69 | |
| 27 | 5.8% |
57.6%80–59 | |
| 28 | 5.5% |
45.8%54–64 | |
| 29 | 5.5% |
43.8%56–72 | |
| 30 | 5.2% |
51.7%62–58 | |
| 31 | 5.2% |
50.4%58–57 | |
| 32 | 5.2% |
48.7%57–60 | |
| 33 | 5.0% |
49.1%53–55 | |
| 34 | 4.7% |
54.2%64–54 | |
| 35 | 4.2% |
43.8%39–50 | |
| 36 | 3.7% |
50.0%44–44 | |
| 37 | 3.4% |
56.6%43–33 | |
| 38 | 3.1% |
61.8%55–34 | |
| 39 | 3.1% |
43.9%29–37 | |
| 40 | 3.1% |
42.9%30–40 | |
| 41 | 3.1% |
39.4%26–40 | |
| 42 | 2.4% |
53.8%28–24 | |
| 43 | 2.1% |
30.6%11–25 | |
| 44 | 1.8% |
61.9%26–16 | |
| 45 | 1.8% |
47.2%17–19 | |
| 46 | 1.8% |
42.5%17–23 | |
| 47 | 1.6% |
57.1%20–15 | |
| 48 | 1.6% |
44.1%15–19 | |
| 49 | 1.3% |
68.8%22–10 | |
| 50 | 1.3% |
55.3%21–17 | |
| 51 | 1.3% |
46.9%15–17 | |
| 52 | 1.3% |
44.8%13–16 | |
| 53 | 1.3% |
34.6%9–17 | |
| 54 | 1.0% |
55.6%15–12 | |
| 55 | 1.0% |
48.3%14–15 | |
| 56 | 1.0% |
44.0%11–14 | |
| 57 | 0.8% |
63.2%12–7 | |
| 58 | 0.8% |
55.6%10–8 | |
| 59 | 0.8% |
47.1%8–9 | |
| 60 | 0.8% |
42.9%6–8 | |
| 61 | 0.8% |
40.0%4–6 | |
| 62 | 0.8% |
38.9%7–11 | |
| 63 | 0.5% |
75.0%12–4 | |
| 64 | 0.5% |
57.1%8–6 | |
| 65 | 0.5% |
53.8%7–6 | |
| 66 | 0.5% |
46.2%6–7 | |
| 67 | 0.5% |
45.5%5–6 | |
| 68 | 0.5% |
38.5%5–8 | |
| 69 | 0.5% |
37.5%3–5 | |
| 70 | 0.5% |
33.3%4–8 | |
| 71 | 0.5% |
33.3%4–8 | |
| 72 | 0.5% |
25.0%2–6 | |
| 73 | 0.5% |
16.7%1–5 | |
| 74 | 0.5% |
11.1%1–8 | |
| 75 | 0.5% |
11.1%1–8 | |
| 76 | 0.3% |
75.0%6–2 | |
| 77 | 0.3% |
75.0%6–2 | |
| 78 | 0.3% |
71.4%5–2 | |
| 79 | 0.3% |
62.5%5–3 | |
| 80 | 0.3% |
62.5%5–3 | |
| 81 | 0.3% |
57.1%4–3 | |
| 82 | 0.3% |
50.0%1–1 | |
| 83 | 0.3% |
50.0%3–3 | |
| 84 | 0.3% |
50.0%2–2 | |
| 85 | 0.3% |
50.0%4–4 | |
| 86 | 0.3% |
40.0%2–3 | |
| 87 | 0.3% |
37.5%3–5 | |
| 88 | 0.3% |
28.6%2–5 | |
| 89 | 0.3% |
28.6%2–5 | |
| 90 | 0.3% |
25.0%1–3 | |
| 91 | 0.3% |
25.0%1–3 | |
| 92 | 0.3% |
25.0%1–3 | |
| 93 | 0.3% |
25.0%1–3 | |
| 94 | 0.3% |
25.0%1–3 | |
| 95 | 0.3% |
16.7%1–5 | |
| 96 | 0.3% |
16.7%1–5 | |
| 97 | 0.3% |
16.7%1–5 | |
| 98 | 0.3% |
0.0%0–3 | |
Day 2
52 Pokémon · 53 teams made Day 2 (13.9%)| # | Pokémon | Usage | Conversion | Win rate |
|---|---|---|---|---|
| 1 | 62.3%16.5% conv. |
16.5% | 51.8%44–41 | |
| 2 | 54.7%13.9% conv. |
13.9% | 50.7%38–37 | |
| 3 | 41.5%13.2% conv. |
13.2% | 50.9%29–28 | |
| 4 | 39.6%15.6% conv. |
15.6% | 43.4%23–30 | |
| 5 | 34.0%18.0% conv. |
18.0% | 45.8%22–26 | |
| 6 | 26.4%17.3% conv. |
17.3% | 52.8%19–17 | |
| 7 | 24.5%10.0% conv. |
10.0% | 51.4%18–17 | |
| 8 | 22.6%19.0% conv. |
19.0% | 56.3%18–14 | |
| 9 | 22.6%26.7% conv. |
26.7% | 50.0%14–14 | |
| 10 | 15.1%11.0% conv. |
11.0% | 47.1%8–9 | |
| 11 | 15.1%25.0% conv. |
25.0% | 47.1%8–9 | |
| 12 | 15.1%12.7% conv. |
12.7% | 35.3%6–11 | |
| 13 | 13.2%13.0% conv. |
13.0% | 52.6%10–9 | |
| 14 | 11.3%30.0% conv. |
30.0% | 62.5%10–6 | |
| 15 | 11.3%18.2% conv. |
18.2% | 62.5%10–6 | |
| 16 | 11.3%27.3% conv. |
27.3% | 56.3%9–7 | |
| 17 | 11.3%10.2% conv. |
10.2% | 50.0%7–7 | |
| 18 | 9.4%20.8% conv. |
20.8% | 61.5%8–5 | |
| 19 | 9.4%4.3% conv. |
4.3% | 57.1%8–6 | |
| 20 | 9.4%16.1% conv. |
16.1% | 33.3%4–8 | |
| 21 | 9.4%15.6% conv. |
15.6% | 33.3%4–8 | |
| 22 | 9.4%12.2% conv. |
12.2% | 27.3%3–8 | |
| 23 | 9.4%41.7% conv. |
41.7% | 20.0%2–8 | |
| 24 | 9.4%11.1% conv. |
11.1% | 20.0%2–8 | |
| 25 | 7.5%14.3% conv. |
14.3% | 75.0%9–3 | |
| 26 | 7.5%14.3% conv. |
14.3% | 72.7%8–3 | |
| 27 | 7.5%22.2% conv. |
22.2% | 33.3%3–6 | |
| 28 | 5.7%11.5% conv. |
11.5% | 62.5%5–3 | |
| 29 | 5.7%7.7% conv. |
7.7% | 55.6%5–4 | |
| 30 | 5.7%11.1% conv. |
11.1% | 44.4%4–5 | |
| 31 | 5.7%42.9% conv. |
42.9% | 20.0%1–4 | |
| 32 | 3.8%40.0% conv. |
40.0% | 83.3%5–1 | |
| 33 | 3.8%10.0% conv. |
10.0% | 83.3%5–1 | |
| 34 | 3.8%66.7% conv. |
66.7% | 83.3%5–1 | |
| 35 | 3.8%33.3% conv. |
33.3% | 75.0%3–1 | |
| 36 | 3.8%40.0% conv. |
40.0% | 50.0%2–2 | |
| 37 | 3.8%22.2% conv. |
22.2% | 50.0%3–3 | |
| 38 | 3.8%10.5% conv. |
10.5% | 40.0%2–3 | |
| 39 | 3.8%15.4% conv. |
15.4% | 40.0%2–3 | |
| 40 | 3.8%10.0% conv. |
10.0% | 25.0%1–3 | |
| 41 | 1.9%25.0% conv. |
25.0% | 100.0%3–0 | |
| 42 | 1.9%20.0% conv. |
20.0% | 100.0%3–0 | |
| 43 | 1.9%4.8% conv. |
4.8% | 66.7%2–1 | |
| 44 | 1.9%33.3% conv. |
33.3% | 66.7%2–1 | |
| 45 | 1.9%7.1% conv. |
7.1% | 66.7%2–1 | |
| 46 | 1.9%50.0% conv. |
50.0% | 33.3%1–2 | |
| 47 | 1.9%16.7% conv. |
16.7% | 33.3%1–2 | |
| 48 | 1.9%100.0% conv. |
100.0% | 33.3%1–2 | |
| 49 | 1.9%50.0% conv. |
50.0% | 0.0%0–1 | |
| 50 | 1.9%50.0% conv. |
50.0% | 0.0%0–3 | |
| 51 | 1.9%4.8% conv. |
4.8% | 0.0%0–3 | |
| 52 | 1.9%100.0% conv. |
100.0% | 0.0%0–1 | |
Top cut
31 Pokémon · 12 teams made the top cut (3.1%)| # | Pokémon | Usage | Conversion | Win rate |
|---|---|---|---|---|
| 1 | 66.7%4.0% conv. |
4.0% | 50.0%7–7 | |
| 2 | 50.0%2.9% conv. |
2.9% | 54.5%6–5 | |
| 3 | 41.7%3.0% conv. |
3.0% | 55.6%5–4 | |
| 4 | 33.3%6.3% conv. |
6.3% | 60.0%6–4 | |
| 5 | 33.3%3.0% conv. |
3.0% | 50.0%4–4 | |
| 6 | 25.0%3.7% conv. |
3.7% | 71.4%5–2 | |
| 7 | 25.0%2.3% conv. |
2.3% | 66.7%4–2 | |
| 8 | 25.0%5.6% conv. |
5.6% | 50.0%3–3 | |
| 9 | 25.0%9.1% conv. |
9.1% | 50.0%3–3 | |
| 10 | 16.7%4.4% conv. |
4.4% | 75.0%3–1 | |
| 11 | 16.7%1.7% conv. |
1.7% | 60.0%3–2 | |
| 12 | 16.7%8.3% conv. |
8.3% | 60.0%3–2 | |
| 13 | 16.7%40.0% conv. |
40.0% | 50.0%2–2 | |
| 14 | 16.7%10.0% conv. |
10.0% | 50.0%2–2 | |
| 15 | 16.7%7.1% conv. |
7.1% | 50.0%2–2 | |
| 16 | 16.7%2.7% conv. |
2.7% | 33.3%1–2 | |
| 17 | 16.7%6.3% conv. |
6.3% | 33.3%1–2 | |
| 18 | 16.7%10.0% conv. |
10.0% | 0.0%0–2 | |
| 19 | 16.7%2.0% conv. |
2.0% | 0.0%0–2 | |
| 20 | 16.7%3.4% conv. |
3.4% | 0.0%0–2 | |
| 21 | 8.3%3.7% conv. |
3.7% | 66.7%2–1 | |
| 22 | 8.3%3.8% conv. |
3.8% | 66.7%2–1 | |
| 23 | 8.3%2.6% conv. |
2.6% | 50.0%1–1 | |
| 24 | 8.3%4.5% conv. |
4.5% | 50.0%1–1 | |
| 25 | 8.3%1.6% conv. |
1.6% | 0.0%0–1 | |
| 26 | 8.3%33.3% conv. |
33.3% | 0.0%0–1 | |
| 27 | 8.3%3.6% conv. |
3.6% | 0.0%0–1 | |
| 28 | 8.3%25.0% conv. |
25.0% | 0.0%0–1 | |
| 29 | 8.3%16.7% conv. |
16.7% | 0.0%0–1 | |
| 30 | 8.3%5.6% conv. |
5.6% | 0.0%0–1 | |
| 31 | 8.3%20.0% conv. |
20.0% | 0.0%0–1 | |
Data imported from Battlefy and reviewed by the organisers