Borg Cube

Assimilate 1 (Each player draws cards until they
reveal a creature. This creature gains their abilities, combined power and toughness. Exile both creatures.)
Flying.
If a creature dies, that Borg Cube damaged,
create a Borg token with power/toughness of the creature.
When Borg Cube damages a player, they sacrifice
a permanent. When Borg Cube dies, exile it and
destroy all Borg tokens.
We are the Borg.