Allosaurus Rider Combo
A Modern deck, by Raymond Perez
5th place at a tournament in Saginaw, Michigan, United States on 2019-10-26
As reported at http://www.starcitygames.com

Maindeck:

Creatures
4 Allosaurus Rider
2 Autochthon Wurm
4 Chancellor of the Tangle
1 Laboratory Maniac
4 Simian Spirit Guide (Banned in Modern)
1 Street Wraith
1 Wild Cantor

Instants
1 Life Goes On
4 Manamorphose
4 Nourishing Shoal
4 Once Upon a Time (Banned in Modern)
4 Summoner's Pact
2 Veil of Summer

Legendary Creatures
2 Griselbrand

Sorceries
1 Edge of Autumn
4 Eldritch Evolution
4 Neoform
2 Serum Visions

Basic Snow Lands
1 Snow-Covered Forest

Lands
4 Botanical Sanctum
2 Gemstone Mine (Not currently legal in Modern)
4 Waterlogged Grove

Sideboard:
3 Leyline of Sanctity
4 Nature's Claim
4 Pact of Negation
2 Slaughter Pact
2 Veil of Summer