Red Flags for DMs?

[ATHATH]

Depending on your setting, there are ways to have magic item shops feel less like schrodinger's town wealth boxes. In Spelljammer there's the Mercane, who are explicitly merchants of magic items; in Planescape/ default Greyhawk 3e there's the Githzerai, who are incentivised to make magic items so that they never reach level 15. Eberron sounds like the entire setting is filled with magic; and of course Forgotten Realms is bursting with magic items, high-magic nations like Thay, Netheril, and Imaskar, and of course plenty of individually powerful mages.

I thought that the Githyanki were the ones with the lich queen.