Bubble Blaster is a Equip 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, Bubble Blaster is Unlimited.
YGOPRODeck lists Bubble Blaster for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
Bubble Blaster belongs to the Elemental HERO archetype—use that tag when searching for engine pieces and tech options.
A listed print of Bubble Blaster appears in Duelist Pack: Jaden Yuki (DP1-EN023) at Super Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Bubble Blaster is about $1.01 on TCGPlayer (prices change frequently).
