In TT, Khalida had a rule (blessing of Asaph) that would let her join a unit of archers, greatly increasing their balistic skill and giving them poison arrows. This ability has been added in TT as an aura. The problem is that in TW, she has no real reason to be in aura range of the units you would normally want to buff. She is a pure melee lord, which typically you want to have fighting in melee. Not only that, her abilities are purely melee.
In TT this was not an issue because she had a bound ability (the venom staff) that allowed here to attack from range. So she was an actual hybrid, that could be kept in the back while she shot magic missiles every turn with her venom staff and buffed archers.
The problem is that CA has adapted this literally as a bound ability. Which means that instead of a ranged attack that can be used every turn, she has a bound spell with a large cooldwon that can only be used twice. In practice, she is a pure melee character.
That means that her strongest ability, the blessing of Asaph, is next to useless.
Imho, it would be much better if she was made into a melee/ranged hybrid that shoots using her staff instead of as a pure melee with a bound ability. It would make her more unique, as right now she is the weird lord in their roster that can't use spells and that isn't really all that good in melee.
Alternatively, change his "blessing of Asaph" from an aura into something else. An AOE ranged buff, for example.
Adjust price accordingly.