Photon Thrasher [OP04-EN006] Super Rare Hidden Summoners if this card is co-linked:

if this card is co-linked: You can target 1 monster your opponent controls

including an EARTH monster

Once per turn: You can discard any number of cards

except "Gouki Twistcobra"

Set: Duelist Saga Card type: Ritual Spell Rarity: Ultra Rare This card can be used to Ritual Summon any 1 Ritual Monster

Photon Thrasher [OP04-EN006] Super Rare Hidden Summoners if this card is co-linked:Set: OTS Tournament Pack 4 Card type: Effect Monster Rarity: Super Rare Attack: 2100 Defense: 0 Cannot be Normal Summoned Set. Must first be Special Summoned (from your hand) while you control no monsters. If you control another monster, this card cannot attack.