ダイス・キッス Dice Kiss
Normal Trap Card
[REQUIREMENT] When your opponent Normal or Special Summons a monster face-up, you can return up to 2 monsters on your field to the owner’s hand.
[EFFECT] Roll a six-sided die. Choose 1 face-up monster on your field and it gains 100 ATK x [The number of monsters returned for this effect’s requirement] x [The result of the dice roll)] until the end of the turn.

Source