Sultai Delerium
A Pioneer deck, by Derrick Davis
1st place at a tournament in Indianapolis, Indiana, United States on 2020-02-23

Maindeck:
2 Forest
2 Island

Artifact Creatures
1 Walking Ballista (Banned in Pioneer)

Creatures
1 Murderous Rider
4 Satyr Wayfinder
1 Tireless Tracker

Enchantment Creatures
2 Courser of Kruphix

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

Legendary Creatures
1 Atris, Oracle of Half-Truths
1 Emrakul, the Promised End
1 Ishkanah, Grafwidow
3 Jace, Vryn's Prodigy
4 Uro, Titan of Nature's Wrath (Banned in Pioneer)

Legendary Planeswalkers
2 Nissa, Who Shakes the World
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
4 Overgrown Tomb
2 Watery Grave

Sideboard:
3 Damping Sphere
2 Soul-Guide Lantern
1 Hostage Taker
1 Tireless Tracker
2 Abrupt Decay
1 Eat to Extinction
2 Mystical Dispute
1 Sultai Charm
2 Duress