Sans, Jokester

Vigilance
When a creature you control dies you may pay {r} and add a karma counter to the player who killed it,
Sans does more 1 more damage for each karma counter you have
If Sans, Jokester was to take damege roll a d20,
1-19 Sans takes no damege, 20 Sacrifice Sans, Jokester

"I've gotten a TON to work done, a SKELE-TON"