AG's Boon of Searing Fire

You have resistance to Fire damage. You learn the Fireball spell. You can cast this spell using spell slots if you have ones of the appropriate levels. This spell uses your spellcasting modifiers, or has a DC of 17. Additionally, you gain the following effects:

• This boon has 10 charges that recharge on a long rest
• You may expend 1 charge to ignore resistance or immunity to fire damage dealt by you or creatures created by your spells or features until the start of your next turn.
• You may use your reaction to recover 2 charges whenever you take or would take fire damage. This reaction may be used 5 times per long rest.
• You may expend 1 charge to cast Fireball using one of your spell slots as a bonus action. Alternatively, you may spend 2 charges to cast the spell as a bonus action without consuming a spell slot and ignoring the material component