undead legion

This spell will create a small army of fifty undead soldiers and these soldiers will be under your control until either a necromancy type character uses a seventh level spell or above to control them or they drop to zero hit points, a soldiers health will vary on the materials used if you used two dragon corpses for this spell then your army will be dragon borns of that type of dragon but if you used a weaker enemy or lower quality helmet they will be weaker troops. The DM decides the stats for the soldiers you are using. Only one full army can be created at a time and any other attempts while you have fifty zombies will fail.