Cosmic Hero, Grandvolver (G-BT07/007EN) [Glorious Bravery of Radiant Sword]

Burst -[ACT](RC)[1/Turn]:[Counter Blast (1)] If your vanguard's [Power] is 15000 or greater, choose up to one of your other rear-guards, that unit and this unit get [Power]+4000 until end of turn. If your vanguard's [Power] is 30000 or greater, until end of turn, this unit gets"[AUTO](RC):When this unit's attack hits a vanguard, Counter Charge (2).". [CONT](VC/RC/GC): Resist (This unit cannot be chosen by the effects of your opponent's cards)