Bettan Bat

Up to thrice per turn, if your opponent Normal or Special Summons a monster(s): You can target 1 of them; toss a coin, and if it is heads, change that monster to face-up Attack Position. If it is tails, change it to face-down Defense Position. Once per turn, if a monster(s) is flipped face-up, or a face-up monster(s) is changed to face-down Defense Position, while this monster is on the field (even during the Damage Step): You can target 1 of them; change it to face-up Attack Position or face-down Defense Position.