Sans, Vengeful Brother

When Sans, Vengeful Brother enters the battle a creature renters the field, add a Bad Time counter to each opponents' creatures. Whenever you attack an opponent with Sans, add a Bad
Time counter to up to three of defending opponent's creatures. When a creature reaches 5,10,15,etc bad time counters, you gain life equal to that creature's power.
There you are, you Dirty Brother Killer... Now
BURN IN HELL.