As the sole class to rely almost solely on spells for their power, vs sorcerers and warlocks who have increased physical combat ability and a variety of innate magic or divine casters who are highly capable in physical combat, wizards are the primary caster in D&D. Further, where other casters have specific constraints to their magic use, either representing sponsor influence or thematic style to their learning, wizards, at large, specifically reject these constraints in favor of seeking greater understanding. To represent these things;
Wizards can use spells from all spell lists.
Wizards can use spells from all spell lists.
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