Color Identity: B

Initial Card State
- All permanents on the battlefield.
Steps
- If Cryptic Trilobite has any +1/+1 counters, activate Cryptic Trilobite's first activated ability until it has no +1/+1 counters, adding ({C} magic symbol)
({C} magic symbol)
that can only be spent to activate abilities each time. - Activate Altar of Dementia by sacrificing Cryptic Trilobite.
- Cryptic Trilobite's undying ability from Mikaeus triggers, returning Cryptic Trilobite from your graveyard to the battlefield with a +1/+1 counter on it.
- Repeat any number of times.
- Resolve all Altar of Dementia abilities, milling any number of players any number of cards.
Results
- Infinite colorless mana that can only be spent to activate abilities.
- Infinite death triggers.
- Infinite ETB.
- Infinite LTB.
- Infinite mill.
- Infinite sacrifice triggers.
- Infinite self-mill.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).