This clever loop turns the split-card versatility of Mirror Room // Fractured Realm into an engine for an endless army of tokens. By leveraging the room's permanent ability to double your triggered abilities, unlocking it with Marina Vendrell triggers the token-copying effect twice instead of once. This immediately drops two fresh copies of Fatestitcher onto the battlefield, who can swiftly use their untap abilities to ready Marina for the next step. As you bounce back and forth between locking and unlocking the room, Roar of Resistance ensures all those newly minted tokens can crash into combat with immediate haste and pumped-up power.