Tamurkhan, The Maggotlord

When Tamurkhan enters the battlefield, put a
plague counter on up to two target creatures.
{0}: Choose another target creature with a
counter on it. When that creature dies this turn,
draw a card and then put a +1/+1 counter on
Tamurkhan for each counter on that creature
and Tamurkhan becomes a copy of that creature except it has this ability. Activate this ability only
once each turn.