Descent into Avernus has at least four descent counters on it.
Mana Needed
each turn available.
Steps
At the beginning of your upkeep,
Descent into Avernus triggers.
Holding priority, activate
Circle of Protection: Red by paying , preventing the next amount of damage
Descent into Avernus would deal you this turn.
Resolve the
Descent into Avernus trigger, putting two descent counters on it, then causing each player to create a number of Treasure tokens equal to the number of descent counters on
Descent into Avernus, and causing each opponent to be dealt an amount of damage equal to the number of descent counters on
Descent into Avernus.
Activate
Time Sieve by tapping it and sacrificing five Treasures, causing you to take an extra turn after this one.
Repeat each turn.
Results
Infinite turns.
Metadata
Lock
Bracket tag
RuthlessBracket 4+
For competitive decks at brackets 4+
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.