Infinite Bounce with Sidisi's Faithful and Inalla, Archmage Ritualist

Step 1: Cast Sidisi's Faithful, triggering Inalla's ability to pay 1 life to create a token copy of Sidisi's Faithful.

Step 2: Allow the token copy to enter the battlefield; use its exploit ability to sacrifice itself and bounce a target creature.

Step 3: Repeat the process by using the original Sidisi's Faithful to exploit itself and trigger Inalla again, creating another token copy.

Step 4: Continue this loop for infinite creature ETB effects and infinite bounce.