Arcaphage Swarm

When Arcaphage Swarm enters, remove any number of +1/+1 counters from creatures you control. Then for each counter removed create either a 1/1 green
Arcaphage Elf token or a 1/1 red Arcaphage Goblin token.

When Arcaphage Swarm dies, search your library for an Arcaphage creature, reveal it, and put it into your hand. Shuffle your library.