black pools of xadia

a large pool of bubbling black tar  in a 25FT radius at the point of your choosing in range appears. 

any creature that moves in the tar must make a Dex saving throw or be burned for 1D4 for each turn they are in the tar. 

all creatures in the tar have there movement speed cut in half.

cast at a higher level to gain more radius add an additional 10ft radius per level