The spell is listet in Green Ronins "pocket Grimoir Divine", but i'm not sure if it is called improved bulls strength. Really powerful spell, d8 + 1/2 caster level enhancement bonus IIRC.
I'm currently playing a runecaster (Clr 6/Rnc 10) and i don't use the runes very often (at least not as often as i thought).
One of the reasons i don't to use runes is because it's really expansive to create high level ones. Usually i carry one word of recall rune and several maximized lesser...
Can a cleric destroy a undead creature using the destruction spell?
Yes, i know, destruction does not affect objects and thus undead should be immune to it, but i'm not really sure about that.
Any other opinions on this topic?
It's in the MM page 142.
In the Nightdhades "Aversion to Daylight"
describtion it states "... if exposed to natural daylight (not merely a daylight spell).....".
So there must be a difference between natural sunlight and a daylight spell (at least for a Nightshade).