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.
Yu-Gi-Oh! The Sacred Cards Bundles
TSC-002 | Secret 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.