+match (4)
Whenever a creature enters the battlefield, that creature's controller may have target creature of their choice get -3/-3 until end of turn.
Cast this spell only during the declare blockers step.
For each creature attacking you or a planeswalker you control, create a token that's a copy of that creature and that's blocking that creature. Exile those tokens at end of combat.
When Pattern Matcher enters the battlefield, you may search your library for a card with the same name as another creature you control, reveal it, put it into your hand, then shuffle.
Until end of turn, all creatures gain ": Tap target creature."
Gatherer works better in the Companion app!