Ancient Leaf 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, Ancient Leaf is Unlimited.
YGOPRODeck lists Ancient Leaf for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Ancient Leaf appears in Ancient Prophecy (ANPR-EN061) at Short Print rarity.
Among markets shown on this page, the lowest listed snapshot for Ancient Leaf is about $0.65 on TCGPlayer (prices change frequently).
