Dazzling Pair of Stars in Hand, Aster (DZ-LBT01/SR25EN) [Start Up Trial Deck: Lyrical Monasterio]

[AUTO]:When this unit is placed on (RC), choose up to one of your opponent's front row rear-guards, return it to hand, [COST][Soul-Blast 1 card with "Siana" in its card name or trigger unit], and this unit gets [Power] +5000 until end of turn for each of your opponent's open front row (RC). [AUTO](RC):When your grade 3 or greater vanguard with "Siana" in its card name attacks, if your opponent's front row has no rear-guards, [COST][Counter-Blast 1], and [Stand] this unit.