Fair Warning about the Sorceress in Merlassar

[Nevar]

I cannot for the life of me remember her name, Gvennenin or something. Anyhow, this sorceress operates a shop in Merlassar, but if there's anything at all you want to buy in her shop, be it items, spells or units, buy them ASAP. You can only visit her a limited number of times before she forbids you from setting foot in her house.

I'm posting because this prevented me from running a plant army. She was the only seller of Fauns in my file. I have a feeling she might let me shop again if I finish her quest, but I'm currently in no position to do so as I've been avoiding battles.