* Percentage is an estimate based on loose tests by players. The game does not display the actual chance value.
Evade can trigger by directly attacking or being attacked. If it triggers, the evading Rogue will reduce the opponent's base damage to 0. If there are no other bonus damages in play, the evading rogue will not take damage from the duel. Evade can trigger regardless of duel victory or defeat.
Evade can trigger if a Polymorphed Rogue is attacked, eliminating the base damage of the attacker.
Evade can trigger if a Confused Rogue attacks, as long as the Confuse effect does not activate. If Confuse activates on the attack, Evade cannot trigger, and you will take the normal damage due to Confuse.
It can occur while attacking, although it typically does not matter, as you are already at 0. However, if you have the buff Resurrect and are at 0 (for example, due to a Mage splash), a successful Evade will delay your coming back to life.
It can never occur on defense, as a stunned player cannot be attacked.
Evade just needs to be equipped in a Power Slot in the Guild Character Class selection page for it to have a chance to activate in battle. It depends on your luck with the RNG but it is still the Rogue's best class power.
A must buy for Rogues. The activation is random but the power is not expensive (cheapest of the Rogue powers in Guild Shop) and could increase the Rogue's capability to survive.