Omnipotence

Whenever you activate an ability of a permanent,
you may instead make a copy of each activated
ability that permanent has. Mana abilities cannot
be copied this way. You may choose new targets
for each copy.
Whenever you copy one or more activated
abilities, you get one poison counter.
When Omnipotence enters the battlefield, if you
both own and control Omnipotence and a
creature named Omniscience, exile them, then
meld them into Ego Death Supernova.