Mayuri, Wicked Scientist

Deathtouch, Lifelink, Persist

Whenever another nontoken creature dies, exile it,
put a research counter on Mayuri, and draw a card.

Mayuri has all keyword abilities of creatures exiled with him in addition to his own.

Remove 3 research counters from Mayuri: Put target creature exiled with Mayuri onto the battlefield under your control.