Nerohz's Skeleton

Strengthdrain {b} (whenever an opponent discards
a card, you may pay {b}. If you do, put a +1/+1 counter on this creature).
When Nerohz'z Skeleton enters the battlefield or
dies, each opponent discards a card.
Whenever you trigger Nerohz'z Skeleton's strengthdrain ability, put a +1/+1 counter on
another creature you control.