Bubble appears in the 3D versions and is accessible either through Tellah's Recall ability, and through Twincast when Kain is paired up with either Cecil or Rosa. The spell grants the Bubble status on the entire party. It costs 50 MP to use, deducting MP from both users of the Twincast command. The spell is classified as a White Magic spell.
In the original release, Bubble is an Arcane Magick and the License for the spell is Arcane Magick 5 and costs 60 LP to purchase. The spell can be bought from the Muthru Bazaar after attaining a Clan Rank of Ward of Justice, and inside the skyferries between Rabanastre and Nalbina for 3,300 gil after obtaining the Treaty-Blade.
In the Zodiac versions, Bubble is instead a Green Magick spell unlocked with the Green Magick 3 License. The four mage jobs, White Mage, Black Mage, Red Battlemage, Time Battlemage, can cast it, as well as Larsa when he joins in Jahara. It can be bought from the Muthru Bazaar after attaining a Clan Rank of Riskbreaker (16 Marks killed).
The Bubble Mote can also be used to cast Bubble.
Lost Bubble (ロスト・バブル, Rosuto・Baburu?) appears as a Lost action inside the Bozjan Resistance series of instances for all combat roles. The spell increases the selected party member's HP by 30% for a period of 600 seconds. It has a cast and recast time of 2.5 seconds.