Cast Ugin's Conjurant by paying {1}.
Glaring Fleshraker's first ability triggers, creating a 0/1 Eldrazi Spawn creature token.
Resolve the Ugin's Conjurant spell.
When Ugin's Conjurant enters the battlefield, Glaring Fleshraker's second ability and Cloudstone Curio trigger.
Resolve the Glaring Fleshraker trigger, dealing 1 damage to each opponent.
Resolve the Cloudstone Curio trigger, returning Mysterious Egg from the battlefield to your hand.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Cast Mysterious Egg by paying {1}.
Glaring Fleshraker's first ability triggers, creating a 0/1 Eldrazi Spawn creature token.
Resolve the Mysterious Egg spell.
When Mysterious Egg enters the battlefield, Glaring Fleshraker's second ability and Cloudstone Curio trigger.
Resolve the Glaring Fleshraker trigger, dealing 1 damage to each opponent.
Resolve the Cloudstone Curio trigger, returning Ugin's Conjurant from the battlefield to your hand.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Repeat.

Infinite damage

Infinite ETB

Infinite LTB

Infinite storm count

Glaring Fleshraker

Cloudstone Curio

Ugin's Conjurant

Mysterious Egg

Cast Endless One by paying {1}.
Glaring Fleshraker's first ability triggers, creating a 0/1 Eldrazi Spawn creature token.
Resolve the Endless One spell.
When Endless One enters the battlefield, Glaring Fleshraker's second ability and Cloudstone Curio trigger.
Resolve the Glaring Fleshraker trigger, dealing 1 damage to each opponent.
Resolve the Cloudstone Curio trigger, returning Mysterious Egg from the battlefield to your hand.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Cast Mysterious Egg by paying {1}.
Glaring Fleshraker's first ability triggers, creating a 0/1 Eldrazi Spawn creature token.
Resolve the Mysterious Egg spell.
When Mysterious Egg enters the battlefield, Glaring Fleshraker's second ability and Cloudstone Curio trigger.
Resolve the Glaring Fleshraker trigger, dealing 1 damage to each opponent.
Resolve the Cloudstone Curio trigger, returning Endless One from the battlefield to your hand.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Repeat.

Combos with "Mysterious Egg"