Contest of Claws [The Lost Caverns of Ixalan Commander]

Description

Set:	The Lost Caverns of Ixalan Commander
Type:	Sorcery
Rarity:	Rare
Cost:	{1}{G}

Target creature you control deals damage equal to its power to another target creature. If excess damage was dealt this way, discover X, where X is that excess damage. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)