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Mega Gengar ex Umbreon ex is 0.10% of the field, so you meet it about one round in 979. Too few games to rate it yet, so 52.0% from 21 games (range 33.1–70.5%) 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 Mega Gengar ex Umbreon ex, 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 |
|---|---|---|---|
| Nov 6 | 0.04% (few) | 0.0–0.2% | 1 |
| Nov 7 | 0.04% (few) | 0.0–0.2% | 1 |
| Nov 8 | 0.08% (few) | 0.0–0.2% | 2 |
| Nov 9 | 0.10% (few) | 0.0–0.3% | 3 |
Share trend vs the last 4 weeks (rising +222%, beyond the noise). Data through Nov 9, 2026.