(1) If this card is Synchro Summoned: You can banish all cards from the GYs, then if this card was Synchro Summoned using “Black Rose Dragon” or a Plant Synchro Monster as material, you can destroy all other cards on the field.
(2) When your opponent activates a card or effect that would destroy a card(s) (Quick Effect): You can Tribute this card; negate the activation, then you can Special Summon 1 “Black Rose Dragon” from your Extra Deck or GY.