Name: Morph Exterior
Casting Time: 1 action
Duration: Concentration, 1 minute
Components: V S M (a piece of obsidian, a sycamore tree branch, or a sample of Ochre Jelly ooze)
This spell allows you to alter the outer layers of your body to adapt to the battlefield. When you cast this spell, choose one of the following options:
Stiff Exterior: Your skin hardens, becoming like porcelain in texture. You gain resistance to piercing damage and vulnerability to bludgeoning damage.
Soft Exterior: Your skin gains a cushioning, almost wooden layer. You gain resistance to bludgeoning damage and vulnerability to slashing damage.
Slippery Exterior: Your skin exudes a slimy film out of every pore. You gain resistance to slashing damage and vulnerability to piercing damage.
Classes: Artificer, Sorcerer, Warlock, Wizard
I came up with this spell a couple days ago. Since it's pretty much just a worse version of stoneskin, I originally thought that it should be a 3rd-level spell, but then I thought that the vulnerability along with the reduced duration should make it a 2nd-level spell. So, I removed the costly material component and replaced it with more flavorful components, which could just be circumvented with a focus or component pouch. But I still think the drawbacks are worthy of bringing it down to 2nd-level.