Kai Chisaki, Overhaul

Whenever Kai Chisaki, Overhaul deals combat
damage to another creature, it's controller
sacrifices it at the end of combat.
Whenever a player sacrifices another permanent,
choose one—
•Draw a card, then lose 2 life.
•Put a +1/+1 counter on Kai Chisaki, Overhaul.
{b/g}{u/b}: Sacrifice another permanent.