Boros

[Nymuera]

Boros 100 cards, 2 sideboard 1 {Iroas, God of Victory} 14 {Mountain} 1 {Clifftop Retreat} 1 {Slayers' Stronghold} 1 {Temple of Triumph} 1 {Sunhome, Fortress of the Legion} 1 {Boros Garrison} 14 {Plains} 1 {Mystifying Maze} 1 {Sacred Foundry} 35 lands 1 {Legion Loyalist} 1 {Skyknight Legionnaire} 1 {Soul of Theros} 1 {Aurelia, the Warleader} 1 {Soul of Shandalar} 1 {Hellkite Charger} 1 {Razia, Boros Archangel} 1 {Heliod, God of the Sun} 1 {Brimaz, King of Oreskos} 1 {Agrus Kos, Wojek Veteran} 1 {Purphoros, God of the Forge} 1 {Odric, Master Tactician} 1 {Flame-Wreathed Phoenix} 1 {Tajic, Blade of the Legion} 1 {Preeminent Captain} 1 {Frontline Medic} 1 {Gisela, Blade of Goldnight} 1 {Serra Avatar} 1 {Boros Battleshaper} 1 {Firemane Avenger} 1 {Boros Mastiff} 1 {Stalking Vengeance} 1 {Eidolon of Countless Battles} 1 {Anger} 1 {Spark Trooper} 1 {Boros Reckoner} 1 {General Jarkeld} 1 {Boros Elite} 1 {Oreskos Sun Guide} 1 {Nav Squad Commandos} 1 {Evangel of Heliod} 1 {Keldon Warlord} 1 {Firemane Angel} 1 {Fortress Cyclops} 1 {Foundry Champion} 35 creatures 1 {Launch the Fleet} 1 {Dictate of the Twin Gods} 1 {World at War} 1 {Spectra Ward} 1 {Disenchant} 1 {Master Warcraft} 1 {Skullcrack} 1 {Savage Beating} 1 {Magma Jet} 1 {Breath of Fury} 1 {Legion's Initiative} 1 {Elspeth, Sun's Champion} 1 {Banishing Light} 1 {Boros Charm} 1 {Wear // Tear} 1 {Godsend} 1 {Warleader's Helix} 1 {Fall of the Hammer} 1 {Lightning Bolt} 1 {Path of Bravery} 1 {Assemble the Legion} 1 {Sunbond} 1 {Lightning Helix} 1 {Gideon, Champion of Justice} 1 {Cathars' Crusade} 1 {Fireshrieker} 1 {Massive Raid} 1 {Shiv's Embrace} 1 {Fervor} 29 other spells Sideboard 1 {Koth of the Hammer} 1 {Elspeth, Knight-Errant} 2 sideboard cards

[Mlerner12]

More play sets of stuffs, and take out 3 lands.

[TheRagingMage]

My suggestions are:
1. only 22 lands
2. more creatures, less other spells
3. only 60 total cards