I seen these spells on the wiz\sorc list and wanted to know how they would use it? the spell says
http://paizo.com/pathfinderRPG/prd/spells/createUndead.html#_create-undead.
how can he\she command the undead creature as it forms.
By being a cleric or necromancer with Control Undead feat.
http://paizo.com/pathfinderRPG/prd/feats.html#command-undead
Or you know, casting a spell like command undead. I recommend raising it in a secure location, like in a cell. or while possessing another creature with magic jar. You can also use hold undead to buy yourself some time.
Bonus tip: Heighten spell is worth it for Necromancers.