Autumnal Gloom

{B}: Put the top card of your library into your graveyard.

Delirium - At the beginning of your end step, if there are four or more card types among cards in your graveyard, transform Autumnal Gloom.

Ancient of the Equinox

Creature - Treefolk
Trample, hexproof
Power/Toughness: 4 / 4
Moxie: Jank
Standard: legal, unplayed
Modern: legal, unplayed
Legacy: legal, unplayed
Commander: legal, unplayed
Cube: 675 @ 11.6% Pick/Pass
MTGO Cubes: Unplayed
SOI Draft: Pick (171/315) // LSV (1/5.0)