RGB Rainbowlution is a Continuous Trap Card.
Trap Cards are normally Set first and can be activated on a later turn, often in response to an action.
On the current TCG and OCG Forbidden & Limited lists tracked here, RGB Rainbowlution is Unlimited.
YGOPRODeck lists RGB Rainbowlution for these formats: TCG, OCG, Master Duel.
A listed print of RGB Rainbowlution appears in Battles of Legend: Monstrous Revenge (BLMR-EN011) at Secret Rare rarity.
Among markets shown on this page, the lowest listed snapshot for RGB Rainbowlution is about $0.07 on Cardmarket (prices change frequently).
