Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn.
Cast Anikthea from your hand or from the command zone by paying 2 plus commander tax, if applicable.
When Anikthea enters the battlefield, it and Life Finds a Way trigger.
Resolve the Anikthea trigger, exiling Oblivion Ring from your graveyard and creating two token copies of it that are 3/3 Zombies.
When the Oblivion Ring tokens enter the battlefield, their first abilities trigger.
Resolve the first Oblivion Ring trigger, exiling Anikthea until the Oblivion Ring token leaves the battlefield.
Resolve the second Oblivion Ring trigger, exiling the first Oblivion Ring token.
When the first Oblivion Ring token is exiled, Anikthea returns to the battlefield from exile.
When Anikthea enters the battlefield, it and Life Finds a Way trigger.
Resolve the Anikthea trigger, choosing not to exile anything.
Resolve the Life Finds a Way trigger, creating two token copies of the Oblivion Ring token.
Repeat from step 5.
This clever loop leverages Anikthea, Hand of Erebos and its graveyard-reanimation trigger to clone Oblivion Ring over and over, while Kaya, Geist Hunter's minus ability doubles every token generated along the way. Because the copied Oblivion Rings exile Anikthea and each other in a precise sequence, Anikthea repeatedly blinks back onto the battlefield to restart the cycle. Meanwhile, Life Finds a Way watches these large 3/3 Zombie creature tokens enter and triggers to populate them further, resulting in an unstoppable cascade of endless creature tokens and infinite enter-the-battlefield triggers.