Displacement Cloak (Haste)

Tracing glowing green mathematical equations in the air, the Chronomancer creates an area of quickened time that may be as small as himself, or up to twenty feet, but each foot beyond himself creates an additional point of Arcana DC to initiate the spell, with a starting Arcana DC of 10. The Chronomancer may cast additional Displacement Cloaks, but each active Cloak increases the DC by 2.

The temporally Displaced subject gains an additional +4 to ac, saving throws and to hit, while a natural 20 rolled grants the target a bonus action per turn.

This may also be used to create a bubble area for players to study, train, talk, without at a pace of double the time passing outside. But each hour raises the DC by 1