Become Sandstorm

You transform into a living tornado of sand. While transformed, you gain the following effects:

• Your size increases by one category (Medium becomes large, large becomes huge, etc)
• You can enter a creatures space and stay there freely. while in their space, the creature must make a dexterity saving throw at the start of each of its turns or take 5d6 slashing damage, or half as much on a successful save.
• You lose your movement speed, and instead gain a flying speed equal to twice your normal movement speed.
• You have advantage on all dexterity saving throws
• You are incapacitated, blinded and have a blindsight range of 40 feet
• Your AC becomes 16

At higher levels: When this spell is cast with a spell slot of 5th level or higher, the damage dealt by this spell increases by 1d6. Additionally, when cast with a 6th level spell slot, your movement speed is tripled and automatically succeed on all dexterity saving throws.