Void warp

You summon a void, your own little pocket dimension, where you can store extra supplies and even trap people in there, you can keep it open for a day, but if you are being attacked you will have to roll a d20, if the d20 roll is lower than or 15, it will close, if it is above 15, you can keep it open and fight at the same time. If you escape into the portal, you can summon it in a circle of 50 feet from when you entered the portal, and up to 70 feet high. Ex: Your team is about to die, you summon the void and you all escape, you can summon the portal and step out on a nearby roof that was 60 feet higher and 40 feet further away from where you started.

It only takes 1 action to go in and out of the portal.

ONLY you can control what happens in the void, you can walk normally or float around like in zero gravity. ONLY you can control where you and the people in your void float to. You also control the gravity of other people and objects that enter the void. Ex: your friends enter the void and you can make it so they float or can walk normally. This happens to enemies as well.

You can trap enemies in the void and fight them in the void, if they float around, they will have -3 disadvantage on initiative and and hit rolls. 

ATTENTION: The void is approximately 70 feet wide and 70 feet tall. 

Void: A dark purple space with purple misty walls.