Generaider Boss Bite

Normal Trap

Tribute any number of "Generaider" monsters, then target 1 face-up Xyz Monster you control; attach exactly that many "Generaider" monsters from your hand, field, and/or GY to it, except the monsters Tributed to activate this effect. You can only activate 1 "Generaider Boss Bite" per turn.

Rulings – Yugipedia

Printings:

Mystic Fighters: MYFI-EN039 (Super Rare) - 2019-11-22

Prices:

Cardmarket: 0.17 €
TCGplayer: $ 0.23