Sasha, the Power Hungry

Trample, Reach, Hexproof.
This cannot be countered.
Attacking creatures you control get 2 +1/+1
counters and cannot die until the end of combat.
Partner with Fish Brood of the Tanked. (When
this creature enters the battlefield, target player
may search their library for Fish Brood of the
Tanked and put it into their hand, then shuffle
their library.)
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"She is the terror."