Riryoku is a Mosaic Rare Spell Card card from Yu-Gi-Oh! (Battle Pack 2: War of the Giants, BP02). Current market price: $0.11.
Mosaic Rare
Battle Pack 2: War of the Giants (BP02)
Card Text
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.
