The Awakening of Grusbalesta (ABC-RD-056 SR) [Arcana Battle Colosseum]

[Quickcast] You may pay 2 less to play this card for each different name among all magic stones you control. Magic stones you control become [1000/1000] resonators until end of turn. They are still magic stones. If this card was awakened, they gain [Swiftness], [Barrier] and [Eternal] until end of turn. [Awakening] Rest a recovered card named "Grusbalesta" you control.