Voodoo curse

You point on a target in range that you can see wile poring the blood of the vial on your other hand. After you poured the blood the vial bursts in shards from that moment on the spell is casted if the spell fails the viol won't burst. The target has to make a Intelligente saving throw at a fail the creature is controlled by you. You can still move around normally you only have a second vision from the controlled creature and can use every attack the creature has. If your intelligence score is 12 or lower the controlled creature has disadvantage with attacks wile you controls it because you're not smart enough to give over the attacks right. The controlled creature can speak telepathic with you but loses every ability to speak. The voice is still the same when you speak through the body of the controlled creature but it can speak every language you speak and can't speak the languages you can't speak. The Str Des and Con Bonus is still the same but the int wis and cha bonus is the same as yours now.