How it works
Prerequisites
- You have not activated Riverchurn Monument's exhaust ability.
Steps
- 1Cast Traumatize by paying , causing a player to mill half their library, rounded down.
- 2Activate Riverchurn Monument's exhaust ability by paying and tapping it, causing each player to mill cards equal to the number of cards in their graveyard, thus causing the player targeted by Traumatize to mill the rest of their library.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?