Terrasoul

You have discovered the obstinate magics of elemental earth inside yourself, granting you the following benefits:

• Increase your Strength or Constitution score by 1, to a maximum of 20.
• You gain a burrow speed of 10 feet. If you already have a burrow speed, it increase by 10 feet instead. If you end your turn with your head inside a material that you cannot breathe, you take 1d12 bludgeoning damage and immediately begin to suffocate.
• Once you reach 5th level, you can cast the erupting earth spell, requiring no spell slot or components, and you must finish a long rest before you can cast it this way again. You can also cast this spell using any spell slots you have of the appropriate level. Constitution is your spellcasting ability for this spell.