Protectga

Protectga, also known as Protect 2, Protera, or Protectja, is a recurring spell in the series. It is a White Magic spell that functions like Protect, but affects all living members of the party. In some cases, the targets must be within range of the spell caster to be affected. Like Protect, it will generally reduce all damage done to the protected party member or creature by half.

Final Fantasy
Protera, also known as FOG2 in the NES release and Shld2 in the Final Fantasy Origins release, is a level 6 White Magic spell which increases the Defense of all allies by 16 points.

The spell can be bought at Crescent Lake and can be learned by the White Mage, White Wizard, and Red Wizard Job classes. In the Dawn of Souls and 20th Anniversary Edition releases it costs 20 MP to cast.

Final Fantasy XI
The effects of Protectra are similar to the effects of Protect. However, it is only available to White Mages.

Final Fantasy XII
Protectga is a Green Magick that casts Protect to all allies in range. Its License is Green Magick 7 which costs 105 LP. The spell itself initially costs 36 MP to cast and can be bought in Balfonheim after the events in the Pharos at Ridorana for 9400 gil.

In the International Zodiac Job System version, Protectga is listed as White Magick, its License being White Magick 12 that costs 110 LP. The spell can be found in a chest in the Necrohol of Nabudis's Cloister of Distant Song. This magick can be used by the Job classes White Mage, Monk, and Shikari, although Monk must acquire the Esper Cúchulainn License and Shikari the Esper Chaos and White Magick 11 Licenses first.

Final Fantasy XII: Revenant Wings
Basch is the only character able to cast Protectga. It raises the Stamina of a group of allies.

Final Fantasy XIII
Protectra (プロテダ, Puroteda) is an upgraded version of Protect and is learned using the Synergist role. It increases the allies' physical resistance by 50%, but has a shorter duration than Protect. Only two characters can learn this ability: Vanille and Fang.

Final Fantasy Tactics
Protect 2, or Protectja, is a White Magic used by the White Mage Job class. It gives Protect status to all targets in range. It costs 25 MP to use, has a speed of 50, and cost 600 JP to learn. Unlike Protect, it can hit targets vertically up to three spaces, and cannot be reflected. But like Shellja, both suffer from low success rate and long casting time, rendering them practically useless.

In the PS1 version, there is a chance that the caster will chant, upon using this spell: "Shining light, shield from all directions! Protect2!".

Final Fantasy Crystal Chronicles: Ring of Fates
Barriera is cast by piling Fire +1 and Clearara +1. It lasts for a long amount of time.