Deep-Slumber Titan + Elemental Mastery + Warstorm Surge

Prerequisites

• Elemental Mastery attached to Deep-Slumber Titan.
• Deep-Slumber Titan does not have summoning sickness.
• You have a way to give Deep-Slumber Titan indestructible.

Steps

1. 1Give Deep-Slumber Titan indestructible, if needed.
2. 2Activate Deep-Slumber Titan by tapping it, creating seven 1/1 Elemental creature tokens.
3. 3When the Elementals enter the battlefield, Warstorm Surge triggers that many times.
4. 4Resolve the first Warstorm Surge trigger, dealing 1 damage to Deep-Slumber Titan.
5. 5Deep-Slumber Titan triggers, untapping itself.
6. 6Resolve all remaining Warstorm Surge triggers, dealing 6 damage divided among any number of targets.
7. 7Repeat from step 2.

Effects

• Infinite creature ETB
• Infinite creature tokens
• Infinite damage