You transform yourself into a being of pure magical energy. You are incorporeal, immune to critical hits, and gain a fly speed of 50 feet. Because you can draw magical essence from your own form, you can use this energy to cast spells. At the cost of 8 hit points, you can cast spells of 7th level or lower with no loss of prepared spells or spell slots (you can only cast spells you know or those you have prepared for that day). At the cost of 10 hit points, you can use a charged magic item without expending a charge.
If this spell is removed by Dispel Magic you cease to exist for the duration of the spell. You can cancel this spell at any time. While this spell is active, you cannot be healed by magic or potions. If you are reduced to 0 hit points while this spell is active so long as you do not instantly die, your body disperses only to reform in 1d8 days within 5 feet of your last position. You have 1 hit point and cannot recover hit points for a further 1d4 days due to the magic still in your body.
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