I'll look up the current Izzet Prowess archetype in Standard and show you what the decks look like.
Now let me get some tournament sources for citation:
Izzet Prowess in Standard (last 60 days)
Based on 55 recent decklists with a 50.1% winrate, here's what the archetype looks like:
Core Creatures (100% presence):
• Quantum Riddler (4x) - The main prowess threat
• Thundertrap Trainer (3-4x) - Additional prowess creature
• Stormchaser's Talent (4x) - Key enchantment for the strategy
Spells & Interaction (98-100% presence):
• Torch the Tower (4x) - Premium removal
• Splash Portal (4x) - Card advantage
• Stock Up (3x) - Card selection
• Opt (3x) - Cantrip
• Get Out (2x) - Tempo play
• Ral, Crackling Wit (2x) - Planeswalker
Flex Slots (61-96% presence):
• Multiversal Passage (4x) - In most lists
• Into the Flood Maw or Boomerang Basics - Split between these bounce spells
• Astrologian's Planisphere (2x) - Card selection in some builds
• Obliterating Bolt (1x) - Additional removal
Mana Base:
• 4x Spirebluff Canal, 4x Riverpyre Verge
• ~6 Island, ~2 Mountain
• 1-2 utility lands (Roaring Furnace, Thundering Falls, or Cori Mountain Monastery)
Sideboard:
• Spell Pierce (2x), Annul (2x), Disdainful Stroke (2x) - Counterspells
• Spider-Sense (2x), Enduring Curiosity (2x) - Card advantage
• Pyroclasm (1-2x), Fire Magic (2x), Obliterating Bolt (2x) - Sweepers/removal
Sources:
Data from 27 tournaments (67% MTGO, 33% Melee): https://www.mtgo.com/decklist/standard-challenge-32-2025-11-2912825468, https://melee.gg/Decklist/View/f23e7a38-6d76-41c9-8903-b3a500a332e8