however, I could see it turning out incredible because of the card draw side
Izzet Metalcraft (2.6% of the Winner's Metagame) 4 Scalding Tarn 4 Urza's Saga 4 Emry, Lurker of the Loch 4 Tamiyo, Inquisitive Student 4 Mishra's Bauble 4 Mox Opal 4 Unholy Heat 4 Metallic Rebuke 4 Cori-Steel Cutter 3 Mox Amber 3 Quantum Riddler 2 Steam Vents 1 Island 1 Breeding Pool 1 Thundering Falls 1 Mountain 1 Otawara, Soaring City 1 Haywire Mite 1 Flame of Anor 1 Soul-Guide Lantern 1 Aether Spellbomb 1 Skateboard 1 Pithing Needle 1 Flooded Strand 1 Spirebluff Canal 1 Minamo, School at Water's Edge 1 Preordain 1 Fiery Islet 4 Consign to Memory 2 Blood Moon 2 Force of Negation 2 Fire Magic 1 Strix Serenade 1 Flame of Anor 1 Shadowspear 1 Vexing Bauble 1 Mystical Dispute Izzet Metalcraft relies on a large assortment of cheap artifacts to unlock the potential of Mox Opal
The fact it turns into essentially a Blightsteel Colossus on the other side is so hilariously irrelevant in most games that it speaks to how powerful that front side actually is
There are dozens of other cards that grant Flash in one form or another (Quicken is one of my favorites), but none have been as dramatically impactful as these two cards
Creature - Mouse Stella Lee, Wild Card Whenever you cast your second spell each turn, exile the top card of your library
Centaur Chieftain If you absolutely need another weaker and more fiddly Overrun variant in green then theres Centaur Chieftain