I'll analyze Izzet Prowess in Modern, looking at its winrate and most-used sideboard cards.
Let me check for Modern Izzet Prowess data more carefully:
Prowess (Izzet Prowess) in Modern has posted a 46.1% winrate over the last two months (406 wins, 474 losses across 934 non-mirror matches), suggesting the deck is slightly below the competitive average. The archetype saw 218 tournament entries during this period.
The most-used sideboard cards show a clear anti-meta strategy: Unholy Heat (97% presence, 3.25 average copies) and Consign to Memory (96%, 3.68 copies) are nearly universal for removal and graveyard interaction. Spell Pierce (85%, 1.78 copies) provides cheap countermagic, while Surgical Extraction (78%, 1.81 copies) and Soul-Guide Lantern (33%, 1.60 copies) handle graveyard strategies. Meltdown (58%, 1.56 copies) and Into the Flood Maw (53%, 1.57 copies) answer artifacts and other threats. Murktide Regent (50%, 1.54 copies) appears as a transformational sideboard threat to shift gears post-board.
The sideboard composition reflects a need to shore up difficult matchups—particularly combo and graveyard decks—while maintaining interaction against the broader field. The modest winrate suggests Prowess faces challenges in the current Modern meta despite these dedicated sideboard slots.
Sources:
Data from 91 tournaments: 78% MTGO, 22% Melee
https://www.mtgo.com/decklist/modern-challenge-32-2025-10-0312819547
https://www.mtgo.com/decklist/modern-challenge-32-2025-10-1212819536
https://www.mtgo.com/decklist/modern-challenge-32-2025-10-1212819532