Force United

This spell costs {1} less to cast for each
multicolored creature you control.
Create a 5/5 Protector creature token with flying
and indestructible. It is all colors and has "Pay 10
Life: Put an Indestructible counter on each non-
black creature you control, then deal 5 damage to
each creature in play."
Taking time to befriend the beast proved to be the most
useful strategy of all.