Gooey Tendrils

Starting when you choose this origin at 1st level, you can use your magic to replace your arms with a pseudopod of acidic ooze. As a bonus action on your turn, you can expend a spell slot and transform one of your arms into this pseudopod.

While manifesting these pods, as an action, you can make a melee spell attack against a creature within 10 feet of you. On a hit, it deals acid damage equal to 1d6 + 1d6 per level of the spell slot you expended.

Additionally, when you attempt to grapple a creature with your pseudopod, you make a Charisma (Athletics) check, rather than a Strength (Athletics) check, using the magic imbued within your pseudopod to hold the creature.

The pseudopod lasts for a minute, or until you dismiss in on your turn as a bonus action.