"Sage of Destruction" Aura (SR)

[CONT] Assist All of your level 3 or higher characters in front of this card get +2000 power.
[AUTO] [Put 1 card from your hand into your waiting room] When this card is placed on the stage from your hand, you may pay the cost. If you do, choose 1 "Magic That Subjugates Opponents" in your waiting room, and return it to your hand.