Lisu, you don't get XP, if your summoned land the last killing blow. Same goes for scorpions if you use them, AFAIK 50% XP, if they land this last blow. If you do it = full XP.
Just watch: if you kill summoned yourself, you get XP for the summoner (skeleton conjurer for example) not for his creatures. It's game balance.
Kiya
