Mardu Dragons
A Standard deck, by Cecil Washington
12th place at a tournament in Atlanta, Georgia, United States on 2015-10-10

Maindeck:

Creatures
3 Monastery Mentor (Not currently legal in Standard)
4 Soulfire Grand Master (Not currently legal in Standard)
4 Thunderbreak Regent (Not currently legal in Standard)

Enchantments
2 Outpost Siege (Not currently legal in Standard)

Instants
4 Crackling Doom (Not currently legal in Standard)
4 Draconic Roar (Not currently legal in Standard)
2 Kolaghan's Command (Not currently legal in Standard)
1 Murderous Cut (Not currently legal in Standard)
1 Valorous Stance (Not currently legal in Standard)

Legendary Creatures
1 Dragonlord Kolaghan (Not currently legal in Standard)
2 Kolaghan, the Storm's Fury (Not currently legal in Standard)

Legendary Planeswalkers
3 Sarkhan, the Dragonspeaker (Not currently legal in Standard)
1 Sorin, Solemn Visitor (Not currently legal in Standard)

Sorceries
3 Duress

Basic Lands
3 Mountain
1 Swamp

Lands
3 Battlefield Forge (Not currently legal in Standard)
4 Bloodstained Mire (Not currently legal in Standard)
2 Caves of Koilos (Not currently legal in Standard)
2 Haven of the Spirit Dragon (Not currently legal in Standard)
4 Nomad Outpost (Not currently legal in Standard)
2 Shambling Vent (Not currently legal in Standard)
1 Smoldering Marsh (Not currently legal in Standard)
3 Wind-Scarred Crag (Not currently legal in Standard)

Sideboard:
2 Foul-Tongue Invocation (Not currently legal in Standard)
1 Utter End (Not currently legal in Standard)
2 Ob Nixilis Reignited (Not currently legal in Standard)
2 Crux of Fate (Not currently legal in Standard)
3 Radiant Flames (Not currently legal in Standard)
2 Ruinous Path (Not currently legal in Standard)
1 Self-Inflicted Wound (Not currently legal in Standard)
2 Transgress the Mind (Not currently legal in Standard)