Sultai Delirium
A Pioneer deck, by Sonic_Smasher
1st place at a tournament in Magic Online on 2020-06-17

Maindeck:
2 Forest
1 Island

Creatures
2 Murderous Rider
4 Satyr Wayfinder
1 Scavenging Ooze
2 Tireless Tracker

Instants
3 Abrupt Decay
1 Eat to Extinction
4 Fatal Push
2 Grisly Salvage

Legendary Creatures
1 Emrakul, the Promised End
3 Jace, Vryn's Prodigy
1 The Scarab God
4 Uro, Titan of Nature's Wrath (Banned in Pioneer)

Legendary Planeswalkers
1 Tamiyo, Collector of Tales

Sorceries
4 Thoughtseize
3 Traverse the Ulvenwald

Basic Lands
1 Swamp

Lands
4 Blooming Marsh
1 Botanical Sanctum
4 Breeding Pool
3 Fabled Passage
1 Ipnu Rivulet
4 Overgrown Tomb
2 Watery Grave
1 Zagoth Triome

Sideboard:
1 Soul-Guide Lantern
1 Disdainful Stroke
3 Mystical Dispute
1 Noxious Grasp
2 Unravel the Aether
1 Kalitas, Traitor of Ghet
2 Extinction Event
2 Legion's End
2 Unmoored Ego