The Elementals are not living creatures that mimic the living. The Stone elemental raptors are based off a raptor so the creature acts like a raptor. A elemental can be created by expelling energy or magic or mana or whatever abra kadabra alakazam you call it. In this world it's like ours but slightly altered. A elemental can be whatever the maker wants it to be. You could make an army of Giganotosaurus for all I care but the elementals sap off of your energy supply. Violes case where he has a army of raptors saps off a lot of energy but not as much as a Giga. The size affects how much energy it needs to sap off of the maker to sustain its form and do whatever you want with it. The raptors are pretty small because of its size and Violes mysterious amount of energy the amount of energy being sapped is just a small price to pay.
Right now the the setting isn't great because Viole knows nada about his surroundings. So far he knows the building and how the building was an illusion for the even bigger building inside. The building is called the Ark based off the game Ark survival evolved. It has many creatures roaming around. Some that will be introduced in the next few chapters. His time is 2645 the building is far from the nearest city called RiverAsh because the city is next to a river but occasionally ash would fall from the sky no one knows where they come from but that's how it got its name. A town nearby has no name but is known for magical tools and accessories. He learns his staff magic in the city by studying how the staffs amplified the user's magic abilities. There are regions and cities. Viole is not a idiot thank you very much but not spoiling something made him lose his memory. As a child he had an overwhelming amount of magic stored in his body. His magic could be seen when he did anything just breathing could make any elemental because his body couldn't contain all the energy. So it just expelled as much energy as possible when possible.