Special Schedule 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, Special Schedule is Unlimited.
YGOPRODeck lists Special Schedule for these formats: Common Charity, Duel Links, TCG, OCG, Master Duel.
Special Schedule belongs to the Train archetype—use that tag when searching for engine pieces and tech options.
A listed print of Special Schedule appears in Dragons of Legend: The Complete Series (DLCS-EN140) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Special Schedule is about $0.02 on Cardmarket (prices change frequently).
