I'll look up both archetypes to understand their differences and show you what cards define each one.
Now let me get detailed card lists for both archetypes from recent tournaments:
These are two completely different archetypes in different formats. Izzet Elementals is a Standard tribal aggro-tempo deck built around elemental synergies, featuring Sunderflock as the core threat alongside other elementals like Eddymurk Crab and Hearth Elemental. The deck uses tribal payoffs like Roaming Throne and Cavern of Souls in some versions, with tempo plays like Bounce Off and Spider-Sense to protect threats and disrupt opponents. It's currently performing well at 63.5% winrate across 40 tournament entries.
Izzet Midrange is a Legacy control deck that plays like traditional blue-red control with premium interaction. The deck runs Force of Will, Brainstorm, Snapcaster Mage, and Lightning Bolt as its core, with Jace the Mind Sculptor as a finisher. It has very limited recent data (only 1 entry in the last 60 days), so the card list shown represents a classic Legacy UR Control shell rather than an active metagame archetype.
Sample Izzet Elementals (Standard): 4 Sunderflock, 4 Eddymurk Crab, 4 Hearth Elemental, 4 Winternight Stories, 4 Burst Lightning, 4 Sleight of Hand, 4 Opt, 3 Bounce Off, 2 Spell Snare, 2 Multiversal Passage, 4 Steam Vents, 4 Spirebluff Canal, 4 Riverpyre Verge, 5 Island, 2 Abandon Attachments, 2 Glacial Dragonhunt.
Sample Izzet Midrange (Legacy): 4 Snapcaster Mage, 4 Brainstorm, 4 Force of Will, 4 Lightning Bolt, 4 Stern Scolding, 3 Counterspell, 2 Force of Negation, 2 Jace the Mind Sculptor, 2 Fire // Ice, 4 Volcanic Island, 4 Mishra's Factory, 3 Flooded Strand, 3 Polluted Delta, 3 Island, 2 Mystic Sanctuary, various 1-ofs.
Sources: Data from Standard tournaments (Izzet Elementals, 10 events) and Legacy data (Izzet Midrange, minimal recent activity). The Legacy archetype has very limited recent data suggesting it's not an established metagame deck currently.