Bubble shield

You surround yourself and equipment you are carrying with a large protective bubble with a diameter of 10-ft centered on yourself that stays in effect for the duration or if concentration is broken. With this bubble in effect, you are able to breathe regardless of conditions outside the bubble, The bubble moves with you, but if you are inside of a liquid such as water the bubble rises you to the surface at the speed of 40-ft per round at the start of your turn.

If the bubble is attacked by a melee or ranged weapon that deals piercing damage, the bubble pops and the spell ends. However, attacks other than piercing will go through the bubble and can target the caster inside.

The bubble has the same temperature as the area around you the moment you cast it, trapping the air and heat inside until the spell dissipates.