Void Seer is a Quick-Play 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, Void Seer is Unlimited.
YGOPRODeck lists Void Seer for these formats: TCG, OCG, Master Duel.
Void Seer belongs to the Infernoid archetype—use that tag when searching for engine pieces and tech options.
A listed print of Void Seer appears in 2015 Mega-Tin Mega Pack (MP15-EN228) at Super Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Void Seer is about $0.49 on Amazon (prices change frequently).
