If another card(s) you control is destroyed by battle or card effect: You can add 1 "Liberty at Last!" from your Deck or GY to your hand. At the start of the Damage Step, if a Synchro Monster battles a monster: You can destroy the opponent's battling monster. If this card in the Spell & Trap Zone would be destroyed by card effect, you can destroy 1 monster you control instead. You can only use each effect of "Revered Banner of the Revolution" once per turn.