Shambling Ghast trigger, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding .
Holding priority, activate
Haunted Crossroads by paying , putting
Shambling Ghast from your graveyard onto the top of your library.
Resolve the
Rakdos trigger, exiling
Shambling Ghast from the top of your library with the ability to cast it until your next turn.
Resolve the
Evereth ability, putting a +1/+1 counter on it.
Cast
Shambling Ghast from exile by paying .
Birgi triggers, adding .
Repeat.
Notes
If you have a way to kill
Evereth and available, you can do so after putting a significant amount of +1/+1 counters on it to deal damage to each opponent using its second ability.
Results
Infinite +1/+1 counters on a creature.
Infinite creature ETB.
Infinite creature LTB.
Infinite creature sacrifice triggers.
Infinite death triggers.
Infinite storm count.
Infinite damage.
Metadata
Bracket tag
ExhibitionBracket 1+
For any deck
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.