Faith (status)

Faith is a recurring status effect. If a character has the Faith status, they will usually get a boost to their magic power, though this is a bit more complicated in Final Fantasy Tactics.

Final Fantasy IV
Faith doubles the party's magic power. It is cast via Twincast with Rydia + Cecil or Rydia + Rosa.

Final Fantasy XII

 * "The character is pure of thought and at one with the arcane, increasing magick potency. The effect is temporary."

Faith increases the target's magick power by 30 - 50%. Attack spells deal 30% more damage, healing spells are 50% more powerful under Faith. Characters under Faith are also more successful in inflicting targets with negative status effects. Faith requires the 'Green Magic 6' License for 50 LP and can be bought for 5,800 gil from the Rabanastre Clan Provisioner once the player as reached the Clan Rank of Riskbreaker.

Final Fantasy XII: Revenant Wings
Faith is a positive status effect that raises a unit's Magick Attack. Penelo's Mystic Dance and the Judge of Wings's Heroism are a few of the spells that may grant this effect.

Final Fantasy XIII
Faith can be granted by a number of spells as well as the Fortisol item. When granted by the spell Faith, magic attack is increased by 40%, but when granted by Faithra, magic attack is increased by 80%.

Final Fantasy Tactics
While under Faith, a unit is treated as if they have maximum (100) Faith points without inflicting the consequence of raising the permanent Faith statistic too high, which would cause the unit to leave party after the fight. This can be positive or negative as it raises spellcasting ability, but also raises the effect of spells cast on that unit. The opposite of the status Faith is Atheist.

The Mystic's Belief and Templar's Faith can grant this status, and the Rod of Faith weapon will grant the unit Auto-Faith status.