Mishra, Artificer Prodigy Um
Items either give a passive bonus or can be activated during a turn to trigger powerful abilities
Last but not least, Ive grown to like Grand Abolisher quite a bit as a way to prevent your opponents from interacting with you the turn you want to assemble Voltron to win games
Sword of Fire and Ice Card draw and a free Shock with every hit landed on your opponent

The Mixture [Creature] *Angel of Vitality *Resplendent Angel *Angel of Finality *Angel of Jubilation *Gisela, the Broken Blade *Linvala, Keeper of Silence *Angel of Invention *Angel of Sanctions *Archangel Avacyn *Archangel of Thune *Baneslayer Angel *Herald of War *Karmic Guide *Lyra, the Dawnbringer *Adarkar Valkyrie *Angelic Guardian *Angelic Skirmisher *Aurelia, the Warleader *Dawnbreak Reclaimer *Deathless Angel *Linvala, the Preserver *Sunblast Angel *Angel of Serenity *Bruna, the Fading Light *Gisela, Blade of Goldnight *Sephara, Sky's Blade *Avacyn, Angel of Hope [/Creature] [Artifact] *Everflowing Chalice *Sol Ring *Wayfarer's Bauble *Arcane Signet *Boros Signet *Fellwar Stone *Lightning Greaves *Mind Stone *Prismatic Lens *Talisman of Conviction *Sunforger *Sword of Light and Shadow *Urza's Incubator *Hedron Archive *The Immortal Sun [/Artifact] [Instant] *Path to Exile *Swords to Plowshares *Boros Charm *Disenchant *Thrill of Possibility *Chance for Glory *Chaos Warp *Teferi's Protection *Wear // Tear *Settle the Wreckage [/Instant] [Sorcery] *Faithless Looting *Magmatic Insight *Tormenting Voice *Day of Judgment *Wrath of God *Austere Command [/Sorcery] [Enchantment] *Land Tax *Angelic Renewal *Tectonic Reformation *Smothering Tithe [/Enchantment] [Land] *Command Tower *City of Brass *Mana Confluence *Sacred Foundry *Battlefield Forge *Inspiring Vantage *Clifftop Retreat *Rugged Prairie *Temple of Triumph *Unclaimed Territory *Wind-Scarred Crag *Emeria, the Sky Ruin *Forgotten Cave *Secluded Steppe *Myriad Landscape *Ghost Quarter *Tectonic Edge *14 Plains *6 Mountain [/Land] [/Deck] SunforgerSunforger is usually, to me, one of the main selling points for playing Boros, and this hammer can do some work in this deck

While it isnt as common as some, the utility makes a difference