chains of azarath

chains come up from the ground trapping the target the more the target moves the tighter the chains get the tighter the chains the more damage it does every round the creature starts its turn in the chains it takes 1d6 physic damage but every time the chains tighten the damage is increased by 1d6 the chains contains locks on it if all the locks are broken or picked or unlocked the chains loosen once all the locks are off the spell ends 

at higher levels 

whenever you up cast this spell the amount of locks increases 

starting with 3 locks 

at 4th 5 locks (5th) 7 locks 6th 9 locks so on so fourth