Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight | Altar of Dementia

Cards

All permanents on the battlefield (
Eirdu as
Isilu, Carrier of Twilight and
Evernight Shade without a +1/+1 counter on it).

Activate
Altar of Dementia by sacrificing
Evernight Shade.
When
Evernight Shade dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
Resolve the
Altar of Dementia ability.
Activate
Altar of Dementia by sacrificing
Evernight Shade.
When
Evernight Shade dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Evernight Shade enters and dies as a state-based action due to having 0 toughness. Its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
Resolve the
Altar of Dementia ability from step 4.
Repeat from step 4.

If
Evernight Shade starts with a +1/+1 counter on it, then you may start the combo from step 4 instead.

Bracket tag

SpicyBracket 3-4+

Probably 3 or 4, but hard to classify

Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.

Popularity

decks on EDHREC

Variants

105

variants of this combo

Salt

Too few votes

How unfun this combo is to play against, from 0 to 4, as voted by Commander Spellbook users. Scores are refreshed every couple of hours.