Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Altar of Dementia + Virtuous Variant

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

Altar of Dementia

Virtuous Variant

How it works

1. Activate Altar of Dementia by sacrificing Virtuous Variant.
2. When Virtuous Variant dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Virtuous Variant enters, it triggers, putting a +1/+1 counter on it.
4. Resolve the Altar of Dementia ability.
5. Repeat.