d20-magic

What problem does it solve?

This Skill provides spellcasting guidance for the d20 system, including Spell Save DC, Spell Attack modifiers, Concentration, spell slots, cantrips, rituals, and spell preparation.

Core Features & Use Cases

• Core formulas for Spell Save DC and Spell Attack.
• Spell Slots progression and class focus.
• Cantrips scaling and Concentration rules.
• Ritual Casting, Spell Preparation, and component requirements.

Quick Start

To resolve a spell attack, roll 1d20+modifier and compare against target AC; to compute DC, use 8 + Proficiency Bonus + Ability Modifier; refer to spell descriptions for effects.