All Together

All Together deals X damage to target player
or planeswalker they control, where X is the
number of creatures you control. Until the end
of your next turn, creatures you control get
+1/+0.
Hymn {2}{r}{r} (Whenever one or more creatures you
control deal damage to a player or planeswalker, you
may cast this card from your graveyard for its hymn
cost. Then exile this card.)