Sawblade Scamp Infinite Damage with Kediss

Step 1: Play Sawblade Scamp and Kediss, Emberclaw Familiar.

Step 2: Cast noncreature spells to accumulate oil counters on Sawblade Scamp.

Step 3: Use Sawblade Scamp's ability to remove an oil counter and deal 1 damage to each opponent.

Step 4: With Kediss on the battlefield, this damage triggers and spreads to all opponents.

Step 5: Use Aetherflux Reservoir to generate life by casting spells, allowing you to cast more spells and fuel Sawblade Scamp's ability.

Step 6: Repeat the process to deal infinite damage to each opponent.