Sing to the Sky, Rachroea

[AUTO](RC):When this unit attacks, this unit gets [Power] +5000 until end of that battle for each Sound System in your order zone. [AUTO]:When this unit is returned to hand from (RC) during your turn or retired from (RC) during your turn, if you have a vanguard with "Artisaria" in its card name, [COST][Soul-Blast 1], choose one of your units, and it gets [Power] +5000 until end of turn.