Anatolum's Crystal Ball

This crystal ball is about 6 inches in diameter and has 4 charges. While you're attuned to it, you can use it as a +1 spell focus.

You can spend a certain amount of charges to do specific things as follows:

• 1 charge : as a reaction, you can add your spellcasting modifier to your AC until the start of your next turn
• 2 charges : for 1 minute, if you roll dices to heal or inflict damage, you can reroll the 1s on the dice, but you then have to keep the result
• 3 charges : as an action, you can cast the Invisibility spell
• 4 charges : as an action, you can cast the Scrying spell but the target must be an object

At dawn, the crystal ball regains 1d4 - 1 charges.

Notes: Bonus: Spell Attacks, Bonus: Spell Save DC, Bonus: Armor Class, Attunement by a spellcaster, Scrying, Detection, Focus