Bellona of Ezera

Whenever you activate an ability of this creature,
put a charge counter on Bellona of Ezera. During
your upkeep or when Bellona of Ezera attacks, if
you have 5 or more charge counters on this
creature, return all creatures target player
controls to its owner's hand.
{u}{g},{t} Bellona of Ezera deals 2 damage to target
creature or planeswalker.
{4}{w}{u},{t} Return all creatures target player
controls to its owner's hand.