Cool-headed Executor, Mikani

:When this unit is placed on , [ 1 & 1], choose one of your opponent's rear-guards with the same grade as the card for this cost, and retire it. -Kheios (Active if your vanguard is a with "Kheios" in its card name) :When your vanguard attacks, if your soul has eight or more cards with different card names, this unit. If you this unit, put this unit into soul at the end of turn.