Whenever ioun stones are exposed to attack, they are treated as armor class -4 and take 10 hit points of damage to destroy.
Can you attune to multiple IOUN stones?
The Ioun stones (DMG, 176) have no limitations on more than one being used, so you can absolutely do that! But they do require attunement, so unless you can attune to more than 3 items, you can only have 3 going at any given time (and no other magic items.)
How does the ioun stone of protection work?
Ioun Stone of Protection. An Ioun stone is named after Ioun, a god of knowledge and prophecy revered on some worlds. Many types of Ioun stone exist, each type a distinct combination of shape and color. When you use an action to toss one of these stones into the air, the stone orbits your head at a distance of 1d3 feet and confers a benefit to you.
How to protect Ioun stones from theft in Pathfinder?
So would not help if a large creature was standing 2 squares away and tried to steal. You could try to protect it by obscuring it by having lots of stones circling your head and a kind GM might give you a bonus for them to get the correct stone if they know about a particular effect or something.
What does an ioun stone do in D & D?
D&D Beyond. Ioun Stone. An Ioun stone is named after Ioun, a god of knowledge and prophecy revered on some worlds. Many types of Ioun stone exist, each type a distinct combination of shape and color. When you use an action to toss one of these stones into the air, the stone orbits your head at a distance of 1d3 feet and confers a benefit to you.
How long does it take to bind an ioun stone?
Binding a stone to a single owner is a lengthy process. To begin the ritual, the owner meditates with but a single stone in orbit around him. The body must be cleansed by fasting for a period of at least 3 days. If the fast is broken or interrupted, the process must begin anew.
