Choco, Seeker of Paradise Barring a few exceptions like Kastral, the Windcrested, MTG hasnt got that many powerful bird commanders, let alone a 3-color one

The removal spells in here are quite nice, and theres a bunch, but my vote for unexpectedly powerful dark horse here is the instant-speed tutor (note the flash text there!): Waterlogged Teachings / Inundated Archive Bloodsoaked Insight / Sanguine Morass Boggart Trawler / Boggart Bog Bridgeworks Battle / Tanglespan Bridgeworks Disciple of Freyalise / Garden of Freyalise Drowner of Truth / Drowned Jungle Fell the Profane / Fell Mire Glasswing Grace / Age-Graced Chapel Hydroelectric Specimen / Hydroelectric Laboratory Legion Leadership / Legion Stronghold Pinnacle Monk / Mystic Peak Razorgrass Ambush / Razorgrass Field Revitalizing Repast / Old-Growth Grove Rush of Inspiration / Crackling Falls Sink into Stupor / Soporific Springs Strength of the Harvest / Haven of the Harvest Stump Stomp / Burnwillow Clearing Sundering Eruption / Volcanic Fissure Suppression Ray / Orderly Plaza Waterlogged Teachings / Inundated Archive Witch Enchanter / Witch-Blessed Meadow And you gotta catch 'em all for Commander

I have fewer explosive starts, because I'm more likely to draw a 4-mana version of a spell with an Activated Ability I can use later than the 2-mana version which would leap me ahead if I got lucky
Voltron is a classic Commander strategy, and Galea, Kindler of Hope is a great Voltron commander, acting as a card advantage engine that also cheats equip costs
A 6/6 flying Dragon Horror for seven mana, at the end of each of your turns, Brainstealer Dragon lets you exile the top card of each opponent's library, allowing you to cast those spells for as long as they're exiled whilst ignoring colored mana requirements