Don't try to kill them! Set them on fire and let them suffer!
Another try to make Firebird's Finery fun to play. Please consider this build work in progress.
Our main damage dealer is Energy Twister - Gale Force, which is also our main crowd-control skill thanks to Ranslor's Folly.
Thus, we try to keep Twister damage as high as possible.
By simply standing still and channeling Disintegrate - Convergence it is possible to keep Twisted Sword stack count at 4-6.
This will also get our damage and toughness increased from Mantle of Channeling, Deathwish, Endless Walk set, and Unwavering Will passive.
You can manually cast Twister to increase amount of stacks to 8-9 in case you need a damage burst.
Try to keep distance between your wizard and the enemy to receive boost from Zei's Stone of Vengeance.
This also makes it easier to crowd-control enemies with your Twisters.
Try using Teleport if you have to reposition your character to maintain damage stacks from Endless Walk.