Grum's Popping Bubble (5e Spell)
From D&D Wiki
|Casting time:||1 Action or 1 Reaction|
|Duration:||3 rounds or until dispelled or popped|
You create a shimmering bubble of Force around your character the color of light purple. The bubble will absorb damage equal to (2d10 + 1/2 your Level) from physical or magical attacks that target you. Any damage that is force damage(such as Magic Missile) causes the bubble to absorb it and instead add the force damage to the amount of damage the bubble can absorb before popping. (This includes force spells that are area of effect.) Thus, increasing the amount of damage the bubble will absorb before it pops. Any damage in excess of what the bubble can absorb is done to the player as normal. The player cannot be grappled or knocked back or down while the bubble is active. The bubble can be dispelled.
At the end of 3 rounds, or if the bubble has absorbed all the damage, or has been dispelled, the bubble pops with an odd dissonant sound and does 1d4 Force damage to the caster and anything else within 5 feet.
The spell does not protect against area of effect spells that do not specifically target the caster, with the exception of force damage spells. Only one bubble per caster may be active at any time.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher increase the duration by 1 turn and the damage it can absorb by 1d10 and the damage when it pops by 1d4 Force Damage for each slot level above 2nd.