I'll analyze the performance of Izzet Lessons with and without Monument to Endurance in Standard over the last month.
Izzet Lessons performs BETTER with Monument to Endurance:
With Monument (40 entries):
Without Monument (55 entries):
Key Findings:
Monument to Endurance appears to be a real upgrade to the archetype, offering better consistency through card draw/treasures while punishing opponents. The data suggests running the Monument variant if you're on Izzet Lessons.
Sources:
Data from 26 tournaments (61.5% MTGO, 38.5% Melee). Recent examples: EUL Standard National, Standard Challenge 32 (Dec 6)