Circular Blade of Strong Lightning, Grizel (G-BT12/018EN) [Dragon King's Awakening]

[AUTO](RC):When this unit is attacked or chosen due to an effect of your opponent's cards, your opponent chooses a card from his or her drop zone, and binds it face up. [CONT](RC) Thunderstrike 5 (Active when your opponent's bind zone has five or more cards) :During your turn, this unit gets [Power]+9000, and"[ACT](RC)[1/Turn]:[Counter Blast (1)] If you have a vanguard with "Vanquisher" in its card name, choose one of your opponent's (RC), and until end of turn, when this unit attacks a vanguard, this unit battles both the vanguard and the units on the chosen (RC).".