Spell Gem 5e Tools
You can imbue the gem with a spell if you re attuned to it and it s empty.
Spell gem 5e tools. Spells cast from the spell gem have a save dc of 17 and an attack bonus of 10. Spell gem star ruby spell gem topaz source. That rule is just how spell scrolls work.
Wondrous item rarity varies. Spells cast from the spell gem have a save dc of 18 and an attack bonus of 10. Out of the abyss.
If the spell is on your class s spell list you can read the scroll and cast its spell without providing any material components. The spell is stored in the gem instead of having any effect. A star ruby spell gem can store up to 7th level spells.
While holding the gem you can cast the spell from it as an action if you know the spell or if the spell is on your class s spell list. There is a rule specifically for this in 5e. Spells cast from the spell gem have a save dc of 13 and an attack bonus of 5.
However the more powerful the spell stored was the more difficult it was to cast. To do so you cast the spell while holding the gem. Variant gems for if you want a more powerful gem options.
Spells cast from the spell gem have a save dc of 15 and an attack bonus of 9. A spell gem can contain one spell from any class s spell list. Specific types of gems could store more powerful spells.