I am playing a Rogue with The Revived archetype from Unearthed Arcana (UA): Fighter, Ranger, and Rogue. One of the Revived rogue's 3rd-level features is Bolts from the Grave, which procs (triggers) immediately after using Cunning Action:
You have learned to unleash bolts of necrotic energy from within your revived body. Immediately after you use your Cunning Action, you can make a ranged spell attack against a creature within 30 feet of you, provided you haven’t used your Sneak Attack this turn. You are proficient with it, and you add your Dexterity modifier to its attack and damage rolls. A creature hit by this attack takes necrotic damage equal to your Sneak Attack. This uses your Sneak Attack for the turn.
An example scene:
I'm in an open space and my party and I are fighting a Hill Giant. It throws a rock at me and I get badly damaged. I decide I want to drink a potion, but still try to cause damage using my Bolts from the Grave.
I want to use my action to drink my potion, and then my bonus action to use Cunning Action (Dash), but I don't want to move far. In fact, I would quite happily stay where I am, but maybe just move 5 feet, or less if possible.
When using the Dash option of the Cunning Action feature, is there a minimum amount of movement needed to trigger Bolts from the Grave?
Or could I just move one foot or even one inch, so that I can trigger my Bolts from the Grave attack?