Pick your spells
If you've picked a class that has spells, you'll be able to select them in your character sheet. We've built a nifty spellbook tool that allows you to search for spells, and then learn/prepare them.
To cast your spells, run
/spell-cast. This will open up your spell book. You'll have a drop down to select the spell you want to cast, and then you can click the cast button. We automatically keep track of your spell slots for you.
Discord's select field has a maximum of 25 items. If you are playing a character that needs more than 25 spells, you will have to go into your character sheet and rotate spells as needed.