XY - Steam Siege

Measured activity

M Steelix EX (Full Art) (Holofoil)made the set's biggest measured move, +93% to $21.97. 22 cards broke away from the set's shared move over the measured window, quieter than most Pokémon sets (10.5 per 100 cards vs. a 45.5 median). 20 moved up, 2 moved down.

How Pokémon sets usually behave

Value concentrates hard: across 191 measured Pokémon sets, the single top card typically holds about 16% of a set's total card value.

New sets have typically eased about 23% more than the market overall within 30 weeks of release, fastest in the first few weeks.

Named moves in this set

The set's largest single-card departures from its own shared move.

1. +93%M Steelix EX (Full Art) (Holofoil)$21.97 2025-03-03
2. +85%Magearna EX (Full Art) (Holofoil)$6.15 2025-03-24
3. +79%M Gardevoir EX (Holofoil)$11.54 2024-12-16
4. +55%Azumarill (Reverse Holofoil)$4.33 2025-04-21
5. +55%M Gardevoir EX (Full Art) (Holofoil)$54.15 2025-03-17
6. +49%Gardevoir EX (Full Art) (Holofoil)$10.37 2025-03-10
7. +48%Steelix EX (Full Art) (Holofoil)$15.60 2025-05-26
8. +42%Yveltal BREAK (Holofoil)$6.47 2025-04-14
9. +37%Professor Sycamore (Holofoil)$5.87 2025-02-17
10. +36%Volcanion EX (Full Art) (Holofoil)$8.66 2025-07-28
11. +36%Xerneas BREAK (Holofoil)$7.78 2026-06-08
12. +29%Volcanion EX (Secret) (Holofoil)$22.80 2025-04-14