RGB Rainbowlution

Continuous Trap

Once per turn: You can target 1 face-up monster on the field; its Type is changed to Machine, also it gains the LIGHT/DARK/EARTH/WATER/FIRE/WIND Attributes (even if this card leaves the field).

Rulings – Yugipedia

Printings:

Battles of Legend: Monstrous Revenge: BLMR-EN011 (Secret Rare) - 2023-06-22

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.19