Athreos, Shroud-Veiled | Enduring Bondwarden

Cards

Activate
Blasting Station by tapping it and sacrificing
Enduring Bondwarden.
When
Enduring Bondwarden dies, it and
Athreos' third ability trigger.
Resolve the
Enduring Bondwarden trigger, putting all counters from it onto another nontoken creature you control.
Resolve the
Athreos trigger, returning
Enduring Bondwarden from your graveyard to the battlefield.
When
Enduring Bondwarden enters the battlefield, its backup ability and
Blasting Station trigger.
Resolve the
Enduring Bondwarden trigger, putting a +1/+1 counter on the creature who had a coin counter placed on it, and giving it the printed ability until end of turn.
Resolve the
Blasting Station trigger, untapping it.
Resolve the
Blasting Station ability from step 1, dealing 1 damage.
Activate
Blasting Station by sacrificing the nontoken creature with a coin counter on it, adding one mana of any color.
When the creature dies, its ability from
Enduring Bondwarden and
Athreos' third ability trigger.
Resolve the creature's trigger, putting all counters from it onto
Enduring Bondwarden.
Resolve the
Athreos trigger, returning the creature from your graveyard to the battlefield.
Repeat.

This combo has been estimated to be Spicy (Bracket 3-4+).