Undead King Crown, good for prebuff your summons?

I uses the Undead King Crown, which give +3 to skeleton mastery to summon my initial army, then I give it to my mercenary, which can use its 7% life steal, and I wear my normal gear. Do anyone else do that?|||Well I do prebuff but to be honest Undead crown gives less stronger skeles than a simple shako or +2 skill hat and not much more than a tarn helm.|||+3 summoning circlet is pretty nice for prebuffing.