Black Rose Dragon (CSOC-EN039)

1 Tuner + 1+ non-Tuner monsters

When this card is Synchro Summoned: You can destroy all cards on the field. Once per turn: You can banish 1 Plant monster from your GY, then target 1 Defense Position monster your opponent controls; change that target to face-up Attack Position, and if you do, its ATK becomes 0 until the end of this turn.

Dragon / Synchro / Effect, Crossroads of Chaos