Deathtouch Animation Enhancement

This spell creates an undead servant. Choose a pile of bones or a corpse of a Medium or Small humanoid within range. Your spell imbues the target with a foul mimicry of life, raising it as an undead creature. The target becomes a skeleton if you chose bones or a zombie if you chose a corpse (the GM has the creature's game statistics).

This spell is a special skill of those born with death touch. Consult DM before selecting to make sure this is applicable. This spell enhances the standard animate dead spell and is cast in conjunction with animate dead to increase the number of targets affected by the spell. Once started the ritual must be continued until the wizard fails a concentration check each minute the spell is active. On a success an additional target can be raised and commanded. The DC is equal to 3+ number of targets (CR 1 or lower) the Wizard has raised. If a corpse is animated into an undead form over CR 1 it raises the DC by 2 and one over CR 3 raises the DC by 5. If it exceeds CR 8 than it raises the DC by 10. Once the DC exceeds 19 than each turn the wizard takes 1D4 necrotic damage until he fails a concentration check or he takes damage that causes more than 7 damage. When used in conjunction with animate dead cast at a higher level the spell raises one additional undead for each spell level above 3rd every minute the spell is active. 

While casting the spell the wizard is vulnerable to radiant damage and cannot take any other actions. May not willingly end the build up.