Dragon Knight, Imahd (G-BT03/031EN) [Sovereign Star Dragon]

[AUTO](RC) Generation Break 1 (This ability is active if you have one or more face up G units in total on your (VC) or G zone):[Counter Blast (1)] When your opponent's rear-guard in the same column as this unit is put in the drop zone due an effect from one of your cards, you may pay the cost. If you do, until end of turn, this unit gets [Power]+2000, and "[AUTO](RC):At the beginning of the damage step of the battle that this unit attacks, if the number of your opponent's guardians is one, choose one of your opponent's guardians, retire it, and that unit's effects with "cannot be hit" is nullified.".