The Portal is an object which summons another object. It is a black portal with green outline and shaped like an oval. Various creatures can come out of it; use the Portal to your advantage. Creatures take the size of the portal when it is spawned, e.g a big portal would spawn a big Imp etc. A synonym for Portal is Wormhole (Intergalactic).
Possible Creatures
There are 13 possible things to come out of a Portal. (There may be more!)