Potara Fusion

Potara Fusion's power is equal to the sum of both creature's power exiled with Potara Earrings.
Potara Fusion's toughness is equal to the sum of both creature's toughness exiled with Potara Earrings. Potara Fusion has all keywords that were on exile creatures. Potara Fusion has all activated abilities of exile creatures with an activation cost of "pay {2}".
When Potara Fusion leaves the battlefield return creatures exiled with Potara Earrings to the battlefield.