Demonic Dragon Deity of the Black Sun, Gaen (Buddy Rare)
1
This card can only enter the field if your flag is "Dragon Drei". While you are [Transform] into this card, this card cannot be destroyed, nor returned to hand, and its ability cannot be nullified. When you [Transform] into this card, your opponent cannot draw cards during his or her next turn. When this card attacks, destroy all monsters on your opponent's field. 【Act】 You may discard two size 3 or greater monster cards from your hand and pay 2 gauge. If you do, you gain 5 life! [Transform] [Pay 3 gauge]