Tazar, Shaper of Ideals

Deathtouch
Whenever you proliferate you may change
the name of a counter to another counter
other than poison counters. (You can change +1/+1 counters into time, charge, etc.)
{3}{u}{b}: Discard a card, you lose life equal to the
number of cards in your hand. Then proliferate
equal to the number of card in your hand.