Malenia, Blade of Miquella

Deathtouch, First strike

At the beginning of combat on your turn, choose one that hasn't been chosen —
• Each player sacrifices a creature.
• You may have Malenia, Blade of Miquella fights up to one target creature you don't control.
• You may tap target creature an opponent controls.

Whenever a creature an opponent controls dies, you may pay life equal to that creature's converted mana cost and, if you do, place that many +1/+1 on target creature.