Crayon Tiger (G-BT02/019EN) [Soaring Ascent of Gale & Blossom]

[AUTO](RC)[1/Turn] 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 this unit attacks a vanguard, if this unit is boosted, you may pay the cost. If you do, choose one of your other rear-guards, [Stand] it, it gets [Power]+4000 until end of turn, and at the end of that turn, draw a card, and retire that unit. (Even if you do not pay the cost, this ability cannot be used for the rest of that turn)