Interrupt Mirage offers high condition damage and good disruption through interrupts, despite being a roamer, it can also sidenode if needed. What makes this build unique is Power Block, which puts enemy skills on a higher cooldown when you interrupt them.
It makes a big difference for this build whether or not you know opponent skills and telegraphs.
Mirage gains access to Ambush Skills, transforming your auto-attack into a different skill for a short while after each dodge. On this build, you will have access to Mirage Thrust on Sword, which will be used primarily for mobility, and Imaginary Axes while on Axe, used mainly for damage.
Use your Dodge carefully. Dodging for damage on Axe is a bad idea that will expose you. High risk, low reward.
On the other hand, Mirage Thrust can get a critical daze or simply get you out of a fight.
It will be often a better choice to counter enemy pressure with your skills instead of Dodge.Blurred Frenzy is a low cooldown evade, it locks you in animation but you can use Jaunt, Blink, or Illusionary Leap > Swap during it in case you expect to get punished when you exit the invulnerability.
Your Shatter skills will strip boons from enemies due to Shattered Concentration. You can use this to strip Stability from enemies before attempting to interrupt them. Keep in mind that this is a gamble, as what boons you strip will depend on how many your target has.
Since this is a condition-based build, your main shatter skill should be Cry of Frustration. Mind Wrack can be a decent alternative due to its increased chance of critting and your high power stat from Carrion Amulet. Make sure you shatter with as many clones as possible in close proximity to your target.