Leech Proboscis

Bleed 2 (When Leech Proboscis enters the battlefield, you may move up to two counters from another target creature to Leech Proboscis.)
{1}{b}{g}, {t}: Move a +1/+1 counter from another target creature to Leech Proboscis.
Whenever you remove the last +1/+1 counter from a creature this way, its controller sacrifices it.