The format is primarily played with four players, each with their own deck, with each player's deck based and built around their Commander's colors
I find myself committing Rakdos slots to support for Sacrifice archetypes more often than not, and once you do that there are a lot of great Rakdos cards that are specific to that archetype
Don't be afraid to treat your graveyard like it's your other hand and while you're at it, don't be afraid to treat their graveyard like it's your graveyard

1 Stella Lee, Wild Card 1 Eris, Roar of the Storm 1 Archmage Emeritus 1 Baral's Expertise 1 Tezzeret's Gambit 1 Midnight Clock 1 Haughty Djinn 1 Dig Through Time 1 Winged Boots 1 Talrand, Sky Summoner 1 Octavia, Living Thesis 1 Thunderclap Drake 1 Lock and Load 1 Forger's Foundry 1 Finale of Revelation 1 Curse of the Swine 1 Mizzix's Mastery 1 Chaos Warp 1 Crackling Spellslinger 1 Pyretic Charge 1 Smoldering Stagecoach 1 Elemental Eruption 1 Rousing Refrain 1 Cursed Mirror 1 Bloodthirsty Adversary 1 Finale of Promise 1 Arcane Bombardment 1 Niv-Mizzet, Parun 1 Kaza, Roil Chaser 1 Shark Typhoon 1 Galvanic Iteration 1 Epic Experiment 1 Veyran, Voice of Duality 1 Leyline Dowser 1 Exotic Orchard 1 Shivan Reef 1 Sulfur Falls 1 Frostboil Snarl 1 Temple of Epiphany 1 Cascade Bluffs 1 Ferrous Lake 1 Treasure Cruise 1 Preordain 1 Ponder 1 Murmuring Mystic 1 Deep Analysis 1 Radical Idea 1 Opt 1 Think Twice 1 Arcane Denial 1 Pteramander 1 Vandalblast 1 Pongify 1 Serum Visions 1 Faithless Looting 1 Big Score 1 Storm-Kiln Artist 1 Young Pyromancer 1 Electrostatic Field 1 Guttersnipe 1 Volcanic Torrent 1 Windfall 1 Goblin Electromancer 1 Third Path Iconoclast 1 Expressive Iteration 1 Arcane Signet 1 Izzet Signet 1 Sol Ring 1 Command Tower 1 Temple of the False God 1 Reliquary Tower 1 Izzet Boilerworks 1 Propaganda 14 Island 13 Mountain Quick Draw tokens 1 Bird Illusion // Elemental token 1 Ape // Shark token 1 Drake // Soldier (Urzan) token 1 Boar // Drake token 1 Elemental // Soldier (Urzan) token 1 Dragon Elemental // Bird Illusion token 1 Dragon Elemental // Treasure token 1 Bounty: Rissa "Blades" Lee // Bounty Rules token 1 Bounty: Sleepy Sovka // Bounty Rules token 1 Bounty: Miron Tillas Jr

Dont underestimate what Bubbling Muck is capable of though, as it can perform an excellent impression of High Tide in the right shell, and it can even pull off far more potent shenanigans when paired with blues ability to untap lands and recur sorceries
Targeting is important when considering crime