Rites of the Interplanar

At the beginning of your upkeep, put a loyalty counter on up to one target creature you control.
Whenever a creature you control dies, you may move any number of loyalty counter from it onto another planeswalker you control.
{1}{b}{b}, Sacrifice a creature: Put a -1/-1 counter on up to one target creature, then proliferate.
"The world only serves those who will leave it."