Martyr's Calling

Until end of turn, target creature you control gains "All damage that would be dealt to you or another permanent you control is dealt to this creature instead," and "At end of turn, sacrifice this creature."
If it's your turn, end the turn. (Exile all spells and abilities on the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)