Love Game - Requiem - Cassiel

Cassie looked at her team. She knew Rain well enough to recognize the cogs were turning in his head, but he was just a mortal from Ayther. Angelkin, sure, but he didn't know about the forms of power like she did.

The biggest weakness of war form was its drain on mana, which was why most war form users went for size so that they could absorb more mana through their wings using a greater surface area. But the arena had introduced another weakness: it was enclosed to the point that almost no mana could enter or leave. Between Jassiel and Cassiel, the arena was almost entirely sucked dry of ambient mana at this point.

Jassiel had sidestepped both issues by collaring his Elevated in a way that let him use their mana gates, effectively tripling his generation rate.