Riryoku

[Spell Card]
Target 2 face-up monsters on the field; halve the ATK of 1 monster, and if you do, add that lost ATK to the other monster. These effects last until the end of this turn.
BATTLE PACK 2 WAR OF THE GIANTS
BP02-EN142 | Mosaic Rare
[Spell Card]
Target 2 face-up monsters on the field; halve the ATK of 1 monster, and if you do, add that lost ATK to the other monster. These effects last until the end of this turn.