Temur Delver
A Legacy deck, by Theo_Jung
4th place at a tournament in Magic Online on 2020-09-06

Maindeck:

Creatures
4 Delver of Secrets
4 Dreadhorde Arcanist (Banned in Legacy)
2 Hooting Mandrills
2 Tarmogoyf

Instants
4 Brainstorm
4 Daze
2 Force of Negation
4 Force of Will
4 Lightning Bolt

Legendary Planeswalkers
3 Oko, Thief of Crowns (Banned in Legacy)

Sorceries
2 Chain Lightning
4 Ponder
2 Preordain

Lands
3 Flooded Strand
2 Misty Rainforest
2 Polluted Delta
2 Scalding Tarn
3 Tropical Island
3 Volcanic Island
4 Wasteland

Sideboard:
1 Engineered Explosives
2 Sylvan Library
2 Pyroblast
1 Red Elemental Blast
1 Return to Nature
3 Submerge
2 Surgical Extraction
2 Klothys, God of Destiny
1 Rough