Supremacy Berry is a Normal Spell Card.
Spell Cards are usually activated from the hand on your turn unless their type gives another timing window.
On the current TCG and OCG Forbidden & Limited lists tracked here, Supremacy Berry is Unlimited.
YGOPRODeck lists Supremacy Berry for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Supremacy Berry appears in Raging Battle (RGBT-EN060) at Short Print rarity.
Among markets shown on this page, the lowest listed snapshot for Supremacy Berry is about $0.21 on TCGPlayer (prices change frequently).
