Symphony

Trample, Menace, Lifelink, Reach, Hexproof.

When Symphony enters, sacrifice X permanents, put +1/+1 counters on Symphony equal to the amount of permanents sacrificed. Legendary permanents count as 2, and Codebreakers count as an additional 1.
Symphony is capable of blocking any number of creatures.
When Symphony deals combat damage to a player, exile target creature that player controls and return it to the battlefield under your control. It is a Codebreaker in addition to its other types.