I'm putting this in bug reports instead of suggestions because I assume that wizards with certain themes having access to permanent true seeing through the application of a mere Lesser Planar Binding spell is assuredly an oversight.
An easy fix would be removing it from the L3 summons altogether. Then if it's deemed, for reasons I'll personally never understand, desirable for wizards to have access to summons with this particular ability, then perhaps it can be added to much higher level summons instead.
An easy fix would be removing it from the L3 summons altogether. Then if it's deemed, for reasons I'll personally never understand, desirable for wizards to have access to summons with this particular ability, then perhaps it can be added to much higher level summons instead.