Hustle

In game description- "Increases movement speed. Level up to go even faster!"

It is a non-unique ability so several characters may use it if they like.

For slow characters this can be useful to boost their speed.

Since it boosts Speed with every LV up the more lv up it the faster you go and,

you may LV up it at the Mojo-Dojo.

This can be great for, Character (Mage) because of her,

low SPD and HP making her evade attacks better and run away from enemies/toward

enemies at a faster base, one of the Mage's main weakness's.

Since this is an auto-ability you may equip up to 4 to a character.

This can be useful for anyone who needs to go faster in a Map.

Since you have 4 total slots, if you have a free slot,

you may suggest placing this on especially if you have Pro/Excel, which Pro,

boosts it's base LV and Excel boosts it's max LV making you faster and faster.