Gagagaga Magician

Level 4 DARK/Spellcaster Xyz Effect
2000 ATK / 2000 DEF

2 Level 4 monsters
You can detach 1 material from this card, then target 1 Xyz Monster in your GY, except "Gagagaga Magician"; Special Summon it, but negate its effects. You can only use this effect of "Gagagaga Magician" once per turn. A "Utopic Future" Xyz Monster that has this card as material gains this effect.
● During your Main Phase: You can detach 2 materials from this card, then target 1 Xyz Monster you control; until the end of this turn, change its ATK to 4000, also negate its effects.

Rulings – Yugipedia

Printings:

Legendary Duelists: Magical Hero: LED6-EN034 (Super Rare) - 2020-01-16
Legendary Duelists: Season 3: LDS3-EN127 (Common) - 2022-07-21

Prices:

Cardmarket: 0.21 €
TCGplayer: $ 0.27