Iron Valiant Teal Mask Ogerpon is the 13th most played Expanded deck right now, at 1.8% of the field across 5 tournaments in the last 3 days. Its 2 tournament lists average a 81.2% win rate, and it has won at least one event in that time. 25 core cards show up in at least 70% of lists, including Dedenne-GX, Pheromosa-GX and Marshadow-GX.
Appear in 70%+ of decklists, so they are near-essential for the archetype
Appear in 40% to 70% of decklists, so they are common but swappable
Not enough data for matchup analysis
Public decks built around this archetype