Hier werden alle Regeln aufgelistet die Optional sind, allerdings durch öffentliche Regelwerke zur Verfügung gestellt werden.

Player Handbook

• Ability Scores (p. 13)
• Race Selection (p. 17)
• Variant: Human (p. 31)
• Class Selection (p. 45)
• Multiclassing (p. 163)
• Feats (p. 165)
• Initiative (p. 189)
  • "Optionally, the DM can have the tied characters and monsters each roll a d20 to determine the order, highest roll going first."

Dungeon Master's Guide

• Milestone Levelling (p. 261)
• Buying and Selling Magic Items (p.

Tasha's Cauldron of Everything

• Character Options (p. 7)
• Optional Class Features *
• Customizing Your Origin
  • "Here’s how to do it: take any ability score increase you gain in your race or subrace and apply it to an ability score of your choice. If you gain more than one increase, you can’t apply those increases to the same ability score, and you can’t increase a score above 20."
  • This can be done in various ways:
    • +2 and +1 to Ability Scores of choice. (Must be different scores)
    • +1, +1, +1 to Ability Scores of choice. (Must be different scores)