create silver creatures

you can throw 50 or more silver pieces on the ground and snap your fingers together to create a creature of any size depending on how many pieces of silver you throw down. The creatures have however many hit points the real creature has. 50 pieces = a rat, or 50 pieces = a raven, or 50 pieces = swarm of bugs each silver piece equals a bug, or 50 pieces = a quipper, or 100 pieces = an owl, or 100 pieces = a giant wolf spider, or 100 pieces = a hawk, or 200 pieces = giant weasel, or 500 pieces = giant constrictor snake, or 500 pieces = dire wolf, or 1,000 pieces = horse. You can work with your DM to decide what other creatures you could create with your silver pieces such as using 80 silver pieces to create a cat, or you could add more than 50 coins to create an even larger swarm of bugs. for the duration of the hour the creatures are under your command. the creatures can only do simple tasks such as bringing you something you need or to guard an area. The creatures can also attack, they gain a +1 to their attack roles and damage on a hit. After the hour the creatures return to half however many silver pieces you used in the spell. If there is an uneven number of coins round up.