Searcannon Dragon, Dinobellum

[AUTO](RC)[1/Turn]:When your grade 3 or greater vanguard with "Gargrex" in its card name attacks, if your units did not [Stand] by a card's ability this turn, [COST][Energy-Blast 3], [Stand] this unit, it gets [Power]+5000 until end of turn, and at the end of that turn, retire this unit.