Cave Dragon's Dominance

You take on some of the physical characteristics and
abilities of the cave dragon, growing protective scales and
claws. Until the spell ends, your AC can’t be lower than
16, regardless of what kind of armor you are wearing.
You gain blindsight out to a range of 60 feet. You can
take two actions on your turn to attack with your claws,
dealing 1d6 slashing damage on a hit. You have resistance
to poison damage. Up to three times while the spell is
active, as an action, you can breathe a 20-foot cone of
poison gas, dealing 6d8 poison damage to each creature
in the cone and making it poisoned until it finishes a long
or short rest. A creature that succeeds on a Constitution
saving throw takes half as much damage from your breath
weapon and is not poisoned. Finally, you gain a climbing
speed of 40 feet.