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Greninja Umbreon is 0.15% of the field, so you meet it about one round in 664. Too few games to rate it yet, so 40.6% from 43 games (range 29.2–53.1%) is a rough guide only.
Decks that win more than half their games against it, the best-proven first. "Favored" means even the low end of the range is above 50%. Matchups with few recent games are listed separately.
How many points running the card adds to a deck's win rate against Greninja Umbreon, averaged over the decks that play it into this matchup and allowing for pilot skill. The surest come first.
How often you can expect to face it, day by day (band: likely range).
| Data through | Meta share | 90% range | entries |
|---|---|---|---|
| Oct 29 | 0.52% (few) | 0.2–1.5% | 2 |
| Oct 30 | 0.23% (few) | 0.1–0.7% | 2 |
| Oct 31 | 0.49% (few) | 0.3–0.9% | 8 |
| Nov 1 | 0.42% (few) | 0.2–0.8% | 8 |
| Nov 2 | 0.33% (few) | 0.2–0.6% | 8 |
| Nov 3 | 0.28% (few) | 0.2–0.5% | 8 |
| Nov 4 | 0.27% (few) | 0.1–0.5% | 9 |
| Nov 5 | 0.25% (few) | 0.1–0.5% | 9 |
| Nov 6 | 0.21% (few) | 0.1–0.4% | 9 |
| Nov 7 | 0.21% (few) | 0.1–0.4% | 9 |
| Nov 8 | 0.18% (few) | 0.1–0.3% | 9 |
| Nov 9 | 0.15% (few) | 0.1–0.3% | 9 |
Share trend vs the whole 13-day window (falling −22%, beyond the noise). Data through Nov 9, 2026.