Descent into Avernus + Clock of Omens + Strionic Resonator + Glacial Chasm

Descent into Avernus

Clock of Omens

Strionic Resonator

Glacial Chasm

How it works

1. At the beginning of your upkeep, Glacial Chasm and Descent into Avernus each trigger.
2. Holding priority, activate Strionic Resonator by paying 2 and tapping it, copying Descent into Avernus' ability.
3. Resolve the copy of Descent into Avernus' ability, 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 it, and then deal that much damage to each opponent.
4. Activate Clock of Omens by tapping two Treasures, untapping Strionic Resonator.
5. Activate two Treasures by tapping and sacrificing them, adding 2.
6. Repeat from step 2.