Mysteen Basic tips

• Mirror Shield’s (Secondary) cooldown is fairly low, so try and mix it into your combat flow between shots. It can cause an opponent to waste a powerful attack.
• Mysteen’s Phantasm (Special) mimics your actions in real time. When you jump, reload, Dodge, Levitate, or use your Mirror Shield, the Phantasm does the same. Use this mechanic to deceive enemies into mistaking the Phantasm for you.
• Holding Jump as Mysteen activates her Levitate ability, allowing you to hover in the air. Use this to avoid falling out of the arena or to strafe mid-air in combat.

Mysteen High level tips

• Every third consecutive attack with Mysteen’s Rocket Cards (Primary) is a 3-Rocket Burst. There is a brief window between attacks before the consecutive combo resets. Hitting this burst is key to maximizing Mysteen’s damage, so take your time to aim before firing. 
• There is no limit to the number of times you can swap places with the Phantasm (Special). Use this to escape danger, reposition, or confuse your opponents.