Dreamshape

The world twists around you, shaping into whatever you please. Things are turned out of place and geometry no longer makes sense, reality seems to break apart. Every turn, as your action, and upon casting the spell, you may have any one of the following effects occur: 

• The area in a 30 ft. circle around you is flipped upside down, and all loose objects weighing under 5 lbs (things like houses, wells, do not fall. Liquids are at GM's discretion) fall towards the sky, while all stationary objects (including creatures), must make a constitution saving throw against your spell save DC. If they fail, they are knocked prone and take 2d4 bludgeoning damage, if they succeed they are unaffected. Once this effect ends, all falling objects fall back down to the ground, and any creature they might strike takes 3d6 damage of the objects corresponding damage type. 
• In a 30ft. circle around you, gravity no longer applies, and all creatures and objects begin to float. Each creature's movement speed is equal to half of their swimming speed. 
• In a 30ft. circle around you, the force of gravity doubles, and all creatures within range must succeed on a strength saving throw against your spell save DC or be knocked prone. Every turn after this all creatures must succeed on a strength saving throw against your spell save DC or continue to be prone. All of the ground within the range of this spell is considered rough terrain. All fall damage is doubled. If their is no gravity in the area, gravity returns to normal. 
• 6 Portals open in any 6 locations of your choosing within a 30ft. radius of you, they may appear at any height of up to 20ft., and they may be placed on any flat surface of at least 10ft.. If a creature is leaning on, or standing on a space where a portal opens, they fall in automatically.  When these portals are created, assign each a number from 1-6, with no repeats. Each time a creature enters a portal, roll 1d6 to determine which portal they reappear from.
• Black fog obscures the area in a 30ft. circle around you, blinding any creature's within range. (Note: dark vision has no effect while peering into the fog, and light cannot penetrate it the fog)
• In a 30ft. circle around you, all creature's thoughts become audible, as if each creature is yelling what they think. All creatures understand all languages within this area, as long as they are thoughts and not speech. As a result of this, all creatures have advantage on all attack rolls and saving throws. In addition, no creature can know where any other creature is located so long as they rely on hearing to identify location. 

Each effect lasts until the spell ends, or until you use your action to end an effect.