I will agree with unlimited healing being a bad idea.
Earth and Chaos storms are meant to be damage, and damage only, they explicitly state that they do not heal anything. Same with Magic Storm, it's not any specific type of damage (flame, lightning, stone, ice, or any other element or effect) and can only be stopped with a spell shield, reflect, or resist magic (or dodge or phase, but those stop everything).
Another solution to a lack of healing? Get a potionmaker. Then the healing is far more portable.
Earth and Chaos storms are meant to be damage, and damage only, they explicitly state that they do not heal anything. Same with Magic Storm, it's not any specific type of damage (flame, lightning, stone, ice, or any other element or effect) and can only be stopped with a spell shield, reflect, or resist magic (or dodge or phase, but those stop everything).
Another solution to a lack of healing? Get a potionmaker. Then the healing is far more portable.