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Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Abilities, attacks, weakness & resistance
If this Pokémon is your Active Pokémon and is damaged by an attack from your opponent's Pokémon-GX or Pokémon-EX (even if this Pokémon is Knocked Out), put damage counters on the Attacking Pokémon equal to the damage done to this Pokémon.
This attack's damage isn't affected by Resistance.
This attack does 60 damage times the amount of Energy attached to your opponent's Active Pokémon. (You can't use more than 1 GX attack in a game.)
Other cards from Lost Thunder
Wait and See Hammer (Holofoil)
Spell Tag (Holofoil)
Net Ball (Holofoil)
Lost Blender (Holofoil)
Electropower (Holofoil)
Custom Catcher (Holofoil)
Counter Gain (Holofoil)
Choice Helmet (Holofoil)
Adventure Bag (Holofoil)
Lugia-GX (Holofoil)
Mimikyu-GX (Holofoil)
Alolan Ninetales-GX (Holofoil)
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Sigilyph-GX (sm8-98 Holofoil) is a Basic Psychic Pokémon-GX from the Lost Thunder set featuring the Mirror Counter Ability. Mirror Counter returns damage to an opponent's attacking Pokémon if Sigilyph-GX is damaged by a Pokémon-GX or Pokémon-EX, potentially placing matching damage counters even if knocked out. It has two attacks, Sonic Wing for consistent 80 damage unaffected by Resistance and Intercept-GX which deals 60× damage based on the opponent Active Pokémon's attached Energy (GX attacks limited to one per game).
Catalog pricing data as of 21 Apr 2026, 02:24