Arise is a magic spell in Final Fantasy VII Rebirth. Provided by a max level 
Revival Materia and Phoenix, it revives a party member at full HP.
Use[]
Raise costs 14 MP to cast, and can be used by party members with max level revival materia, and by Phoenix with a Level 2 summoning materia. It revives a KO'd party member at partial HP, with a high MP cost and a long cast time. The spell is very ATB- and MP-efficient as it does not require the party member to be healed to full after being revived, but its long cast time and MP cost mean some may consider casting 
Raise instead.
The drawbacks of Arise can be alleviated with 
Support Materia pairings. Magic Efficiency Materia can greatly reduce its hefty MP cost, allowing it to be cast more freely. Swiftcast Materia can eliminate or reduce its lengthy cast time, making it much less dangerous to cast and reducing the possibility that the caster will be interrupted or killed while casting. Both of these can be important and are useful if the party member has spare materia slots.