From Final Fantasy XIV A Realm Reborn Wiki
Summon Seraph is an action unlocked at level 80. It's available for Scholar.“
Summons Seraph to fight at your side. While summoned, automatically casts Seraphic Veil on party members who suffer damage.
- Cannot summon Seraph unless a pet is already summoned. Current pet will leave the battlefield while Seraph is present, and return once gone.
- Duration: 22s
- Seraph must now wait 2 seconds after being summoned to begin executing actions.
— In-game description