Acatl, High Priest of the Dead

Partner with The Wind of Knives (When this creature enters the battlefield, target player may put The Wind of Knives into their hand from their library, then shuffle.)
Deathtouch
{b}, sacrifice X creatures, choose one—
•Gain X life, where X is the total power of creatures that died this turn
•Put X +1/+1 counters on target creature