Gutter Grime has slime counters on it at least equal to the toughness of the creature card in your hand.
Steps
Cast the creature card in your hand by paying .
Either that creature dies as a state-based action due to having zero toughness, or activate
Evereth by sacrificing that creature.
Gutter Grime triggers, putting a slime counter on it and creating a X/X Ooze creature token.
Activate
Evereth by sacrificing the Ooze.
When the Ooze dies,
Colfenor triggers, returning the creature card from your graveyard to your hand.
If the
Evereth ability is not a mana ability, resolve those abilities now.
Repeat.
Notes
This combo also puts infinite slime counters on
Gutter Grime, allowing you to easily create additional infinitely large creature tokens.
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 creature tokens that are infinitely large.
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.