Elementals
A Modern deck, by Kyle Capellan
6th place at a tournament in Bernardsville, New Jersey, United States on 2019-12-01
As reported at http://www.starcitygames.com

Maindeck:

Artifacts
4 Aether Vial

Creatures
4 Flamekin Harbinger
2 Flickerwisp
4 Lightning Skelemental
4 Phantasmal Image
4 Risen Reef
1 Smokebraider
2 Spitebellows
4 Thunderkin Awakener
4 Unsettled Mariner
2 Vesperlark
4 Voice of Resurgence

Legendary Creatures
1 Omnath, Locus of the Roil

Basic Snow Lands
1 Snow-Covered Mountain

Lands
4 Ancient Ziggurat
4 Cavern of Souls
1 Fiery Islet
1 Gemstone Mine (Not currently legal in Modern)
4 Primal Beyond
1 Sunbaked Canyon
4 Unclaimed Territory

Sideboard:
4 Phyrexian Revoker
2 Fulminator Mage
3 Healer of the Glade
2 Ingot Chewer
1 Spark Trooper
1 Wispmare
2 Dismember