Alpha Summon is a Normal 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, Alpha Summon is Unlimited.
YGOPRODeck lists Alpha Summon for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Alpha Summon appears in 25th Anniversary Tin: Dueling Mirrors (MP24-EN256) at Ultra Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Alpha Summon is about $0.04 on Cardmarket (prices change frequently).
