Cast Captain's Call.
Two of the tokens die to the legend rule.
Cruel Celebrant and Bishop of Wings both trigger twice.
Resolve the Cruel Celebrant triggers causing each opponent to lose 2 life and you to gain two life.
Resolve the Bishop of Wings triggers creating two 1/1 white Spirit creature tokens with flying.
One Spirit token dies to the legend rule.
Cruel Celebrant and Bishop of Wings both trigger.
Resolve the Cruel Celebrant trigger causing each opponent to lose 1 life and you to gain 1 life.
Resolve the Bishop of Wings trigger creating a 1/1 white Spirit creature token with flying.
Repeat from step 6.

Infinite death triggers

Infinite creature ETB

Infinite lifegain

Infinite lifegain triggers

Infinite lifeloss

Infinite creature LTB

Bishop of Wings

Maskwood Nexus

Cruel Celebrant

Leyline of Singularity

Captain's Call

Arcane Adaptation

Combos with "Captain's Call"