If you go for a double-colour deck, the energy generated is randomised
Great for tournaments though
To get an overview and refresher of the set's mechanics, check out our mechanics article
Equipping ViviVivi will also buff him up, and if the amount of power gained is greater than the equip cost, it's mana positive

This deck is designed to scale well into the late game and will out-value your opponents with powerful creatures and durable removal spells." - EDHGen.ai Creature (34) Dark Confidant|$13.91 Adarkar Valkyrie|$1.01 Archaeomancer|$0.28 Ashen Rider|$0.29 Baleful Strix|$2.04 Bloodgift Demon|$2.05 Clever Impersonator|$3.37 Cloudblazer|$0.12 Crypt Ghast|$13.43 Deputy of Detention|$0.31 Diluvian Primordial|$0.15 Dimir Doppelganger|$0.82 Drogskol Reaver|$1.35 Fathom Feeder|$0.23 Fleshbag Marauder|$0.15 Geist of Saint Traft|$0.27 Grave Titan|$6.51 Grim Haruspex|$0.39 Gyruda, Doom of Depths|$0.45 Karmic Guide|$0.23 Mulldrifter|$0.32 Myr Battlesphere|$0.17 Nezahal, Primal Tide|$3.53 Phyrexian Obliterator|$5.92 Ravenous Chupacabra|$0.31 Sun Titan|$0.57 Thalisse, Reverent Medium|$0.19 Thief of Sanity|$0.46 Torrential Gearhulk|$2.26 Trinket Mage|$0.25 Twilight Prophet|$11.10 Vilis, Broker of Blood|$7.14 Yosei, the Morning Star|$2.47 Abdel Adrian, Gorion's Ward|$0.12 Planeswalker (1) Narset, Parter of Veils|$1.64 Instant (9) Counterspell|$1.30 Despark|$0.14 Entomb|$6.92 Mortify|$0.16 Remand|$1.65 Swords to Plowshares|$0.65 Mausoleum Secrets|$0.87 Thirst for Knowledge|$0.05 Cloudshift|$0.37 Sorcery (7) Bontu's Last Reckoning|$0.94 Damnation|$16.46 Merciless Eviction|$0.25 Supreme Verdict|$4.32 Vindicate|$0.45 Wrath of God|$3.13 Yawgmoth's Will|$null Enchantment (1) Search for Azcanta|$1.33 Artifact (12) Arcane Signet|$0.87 Commander's Sphere|$0.14 Fellwar Stone|$0.30 Orzhov Signet|$0.17 Sensei's Divining Top|$23.39 Skullclamp|$4.41 Sol Ring|$1.54 Talisman of Dominance|$1.97 Talisman of Progress|$null Worn Powerstone|$1.21 Vat of Rebirth|$0.27 Clock of Omens|$1.26 Land (36) Ash Barrens|$0.13 Azorius Chancery|$0.15 Bojuka Bog|$0.62 Command Tower|$0.24 Darkslick Shores|$2.58 Drowned Catacomb|$3.54 Evolving Wilds|$null Flooded Strand|$33.65 Godless Shrine|$10.79 Hallowed Fountain|$11.04 3xIsland|$null Isolated Chapel|$3.28 Jwar Isle Refuge|$0.19 Mana Confluence|$43.52 Marsh Flats|$11.33 Mystic Gate|$13.31 Mystic Sanctuary|$1.65 3xPlains|$null Polluted Delta|$36.78 Prismatic Vista|$21.81 Reflecting Pool|$5.75 Scrubland|$null Search for Azcanta|$1.33 Sunken Ruins|$17.31 3xSwamp|$null Tundra|$null Underground River|$3.85 Underground Sea|$null Urborg, Tomb of Yawgmoth|$35.20 Watery Grave|$13.37

You can easily upgrade First Flight with a few more flying tribal creatures and some more efficient counterspells