Activate a creature using Kiora's Follower's ability by tapping it, untapping Emmara.
Activate Emmara using Kiora's Follower's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

Infinite creature ETB

Infinite creature tokens

Agatha's Soul Cauldron

Emmara, Soul of the Accord

Kiora's Follower

Activate a creature using Ioreth of the Healing House's ability by tapping it, untapping Emmara.
Activate Emmara using Ioreth of the Healing House's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

Ioreth of the Healing House

Activate a creature using Vizier of Tumbling Sands's ability by tapping it, untapping Emmara.
Activate Emmara using Vizier of Tumbling Sands's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

Vizier of Tumbling Sands

Activate a creature using Fatestitcher's ability by tapping it, untapping Emmara.
Activate Emmara using Fatestitcher's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

Fatestitcher

Activate a creature using Clever Conjurer's ability by tapping it, untapping Emmara.
Activate Emmara using Clever Conjurer's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

Clever Conjurer

Activate a creature using Kelpie Guide's ability by tapping it, untapping Emmara.
Activate Emmara using Kelpie Guide's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

Kelpie Guide

Activate a creature using North Pole Patrol's ability by tapping it, untapping Emmara.
Activate Emmara using North Pole Patrol's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

North Pole Patrol

Activate a creature using Forensic Researcher's ability by tapping it, untapping Emmara.
Activate Emmara using Forensic Researcher's ability by tapping it.
Emmara triggers, creating a 1/1 Soldier creature token.
Resolve the Emmara ability from step 2, untapping another creature.
Repeat.

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