Arlecchino, the Knave

Devastator 4 —(whenever this creature attacks, each
player must either pay 4 life or sacrifice creatures
with total power 4 or more)

Arlecchino gets +1/+1 until end of turn for each
point of damage you have taken this turn.

at the beginning of your end step, if you lost 6 or
more life this turn, draw a card and create a
treasure token.