Sustain a Spell
Time Required: Varies
Skill: None
A spell with the Sustain duration will normally last until the end of your next turn. However, you may cause the spell to continue by spending the time listed on the spell's Sustain duration. When you do so, the spell then lasts until the end of your next turn. Obviously, you will Sustain a Spell on the turn after you cast it, so that it will last another turn.
A Sustained spell normally does not select new targets, does not cost further Æther to maintain, and does not have any new effects when Sustained. However, all of these are subject to the wording of the spell itself.
Aria casts Summon Minor Ally, which has a duration of Sustain 2 seconds. On her next turn, she may Sustain the Spell by spending two seconds to do so, and the spell will then persist until the end of her next turn. Further, the Summon Minor Ally spell has additional effects when Sustained: the ally may move and make an attack whenever this spell is Sustained.