You shape an illusory duplicate of a creature that is within range for the entire casting time. The duplicate appears to be the same as the original, but it has half the creature's HP maximum and is formed without any equipment. Otherwise, the illusion uses all the statistics of the creature it duplicates, except that it is a construct.
The simulacrum is friendly to you and creatures you designate, and obeys your spoken commands. The simulacrum lacks the ability to learn, so it never increases its level or other abilities, nor regain expended spell slots.
If damaged, you can repair it in an alchemical lab, using rare herbs and minerals worth 100gp per HP it regains. The simulacrum lasts until it drops to 0 HPs, then it reverts to snow and melts instantly. If you cast this spell again, any currently active duplicates are instantly destroyed.
snow/ice in quantities sufficient to made a life-size copy of the creature; a piece of that creature's body (ex: hair, nails) placed inside the snow/ice; and powdered ruby worth 1,500gp, sprinkled over the duplicate and consumed by the spell
Creo Creatura Duplicare