Hive of Allies

Defender
If a nontoken creature you control would enter
the battlefield, exile it instead. At the beginning
of each players' upkeep, create a 2/2 white green
Hiveling creature token for each creature card
exiled by Hive of Allies.
When Hive of Allies leaves the battlefield, return
each creature card exiled by it to the battlefield
under its owner's control. Each enters with an
additional -1/-1 counter on it.