Whisper Heritage (Campaign Builder: Castle and Crowns)

[fickle beacon]

The Ability Ally’s Step, lets you move 5 feet without an AoO, but then it says "When you do so, you can’t move any farther this turn."

would this stop you from being able to use a Dash action or is this meant to just end your normal movement?

[umbral imp]

You can still take the Dash action, but you can't move farther this turn (effectively wasting the action you spent on Dash). I.e. this doesn't stop you from taking an action, but it does stop you from moving more after moving that special 5 feet.

This trait doesn't prevent you from moving before taking that special movement, though. So you could move up next to an ally, hit the enemy they are next to or heal your ally then step behind your ally for safety.