Burgeoning Tone, Signe (D-LBT02/SP25EN) [Lyrical Monasterio: It's a New School Term!]

Powerful —[AUTO](RC):When this unit boosts, if your soul has no cards, [COST][Counter-Blast 1]], choose one of your other units, and it gets [Power] +5000 until end of turn. [AUTO](RC):At the end of the battle this unit boosted, if you have a vanguard with the Powerful ability, [Stand] this unit, choose a card from your soul, and put it into your drop. (This effect is mandatory).