Temur Elementals
A Standard deck, by Brad Nelson
1st place at a tournament in Magic Arena on 2020-06-30

Maindeck:

Creatures
4 Cavalier of Thorns (Not currently legal in Standard)
4 Leafkin Druid (Not currently legal in Standard)
4 Risen Reef (Not currently legal in Standard)
3 Terror of the Peaks (Not currently legal in Standard)

Instants
4 Growth Spiral (Not currently legal in Standard)

Legendary Creatures
4 Omnath, Locus of the Roil (Not currently legal in Standard)
3 Uro, Titan of Nature's Wrath (Not currently legal in Standard)
2 Yorion, Sky Nomad (Not currently legal in Standard)

Sorceries
4 Genesis Ultimatum (Not currently legal in Standard)

Basic Lands
3 Forest
3 Island
2 Mountain

Lands
4 Breeding Pool (Not currently legal in Standard)
4 Fabled Passage (Not currently legal in Standard)
4 Ketria Triome (Not currently legal in Standard)
4 Steam Vents (Not currently legal in Standard)
4 Stomping Ground (Not currently legal in Standard)

Sideboard:
4 Lovestruck Beast (Not currently legal in Standard)
2 Aether Gust (Not currently legal in Standard)
2 Flame Sweep (Not currently legal in Standard)
3 Mystical Dispute (Not currently legal in Standard)
2 Negate
2 Wilt (Not currently legal in Standard)