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

Infinite creature tokens

Infinite damage

Infinite creature ETB

Deep-Slumber Titan

Elemental Mastery

Warstorm Surge

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

Terror of the Peaks

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

Combos with "Deep-Slumber Titan"