You create a rift in reality.

Using one action, you can create one portal that is 5-10 feet  in radius on a surface within range. It only activates when the second one is placed. Creatures can move through the portal  willingly, or unwillingly they'll end up at the other portal. Portals also obey physics, like say a orc fell into a portal after falling 60 ft the orc will go another 60 ft while falling (but not if going up) and then stop. you can expend another spell slot to teleport one of the portals up to 60 feet away. like say you trapped a goblin falling through two portals for one minute and then moved the top portal so it was facing sideways the goblin would go sideways at a speed of 80 feet for one minute until touching the ground and getting road rash.