Galactic Charity 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, Galactic Charity is Unlimited.
YGOPRODeck lists Galactic Charity for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Galactic Charity appears in 2015 Mega-Tin Mega Pack (MP15-EN032) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Galactic Charity is about $0.09 on TCGPlayer (prices change frequently).
