D/D/D Wave Oblivion King Caesar Ragnarok (MP16-EN138)

2 "D/D/D" monsters

Once per turn, when an attack is declared involving this card: You can target 1 other "D/D" or "Dark Contract" card you control; return it to the hand, and if you do, equip 1 face-up monster your opponent controls to this card, except the battling monster. This card gains ATK equal to the combined original ATK of the monsters equipped to it by this effect.

Fiend / Fusion / Effect, 2016 Mega-Tin Mega Pack