In most official tabletop roleplaying systems, a cantrip occupies a special niche: it is a spell that you know at all levels and that does not count against your finite pool of spells known per level. This evergreen explainer clarifies when a cantrip does and does not count toward spells known limits, examines how different classes treat them, and highlights the practical impact on character build choices. The guidance below reflects widely adopted rule conventions and is intended as a durable reference for understanding the interaction between known spells and cantrips.
What Does Spells Known Mean?
Spells known refers to the number of distinct spells a spellcasting character can prepare or choose from when determining their available options for a given level. Many classes have a defined spells known progression that increases as they gain levels. When a source imposes a cap on spells known, it is asking how many unique spells sit on your class list for your level. Because cantrips are typically learned automatically and never require selection from a known list, they usually occupy a separate mechanical track from leveled spells known.
Cantrips Do Not Normally Count Against Spells Known
The most consistent rule pattern is that cantrips provided by your class at specific levels are always known on the class list and never reduce the number of leveled spells you may choose. A cantrip is treated as always known, much like a fixed tool on your toolkit, so it does not count toward the pool of spells known at any tier. Some tables may houserule stricter limits, but official material consistently treats cantrips as a free, separate benefit that helps you function every day without forcing you to discard other options.
Comparing Cantrip Access Across Approaches
- Class feature cantrips: learned automatically and not selected, generally do not count against spells known.
- Spells chosen from a list: these are the spells that consume your spells known capacity at each tier.
- Magic items or multiclass dips: may allow access to additional cantrips or alter how known spells are tallied, so check specific text.
How Classes Typically Treat Cantrips
Full Casters: Wizard and Artificer
For full casters like Wizard, cantrips are granted as a fixed list at 1st level, and none of them count against your spells known per level. You learn all cantrips from your class list at every tier, and your limited spells known are reserved for leveled spells you select when leveling up. For Artificer, cantrips likewise do not count toward your artificer spells known total, and you always know all cantrips on the artificer list, preserving your selection pool for higher level options.
Partial Casters and Divine Casters
Sorcerer, Bard, Cleric, Druid, and Their Variants
Sorcerer, Bard, Cleric, and Druid all gain cantrips for free as class features at 1st level, and none of these are applied against their spells known pool. A Sorcerer’s sorcery points or a Bard’s ritual casting do not change whether cantrips count as spells known; they modify resource management, not the status of cantrips relative to your known options. Multiclass spellcasters sum their spellcasting levels for relevant thresholds, but the partition between always-known cantrips and chosen leveled spells remains consistent across these archetypes.
Cantrips and Prepared Casters
Rangers and Other Prepared Casters
Prepared casters such as certain Ranger archetypes determine their available spells daily, yet their cantrips are always available and not selected from the prepared list. Because a cantrip is known at every level, it never reduces how many spells you can prepare from your class list for the day, allowing you to specialize in different scenarios without sacrificing core functionality.
Systems Conventions and Design Intent
Most published rulebooks frame cantrips as reliably available tools that require no daily management, in contrast to leveled spells that you must choose and sometimes surrender to regain. This quiet design choice prevents casters from losing access to utility cantrips when they take new leveled spells, a matter that keeps gameplay smooth at low to mid tiers. Where tables treat cantrips differently, clarity comes from the specific text on the feature granting them, so always verify if a subclass, subclass feature, or prestige option changes the baseline expectation.
Practical Takeaways and Common Edge Cases
Understanding whether your favorite cantrips count toward spells known can change your level planning, especially in multiclass or hybrid builds. In practice, you almost never lose a leveled spell slot to gain a cantrip, but some esoteric features might interact with counts, selection windows, or specific resource effects. Below is a concise reference you can keep at the table.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Cantrips from class feature at 1st level | Not counted against spells known total | Core rules baseline |
| Cantrips granted by subclass at later level | Not counted against spells known total unless subclass text states otherwise | Subclass feature text |
| Spells known cap at a given level | Counts only spells selected from your leveled spell list, not cantrips | Class description |
| Multiclass spellcasting total level | \nUsed to determine spells per day and prepared spells, not to redefine cantrip status | \nMulticlass rules | \n
| Magic items that grant cantrips | \nItem text applies; these are additional and typically still do not count against spells known | \nItem description | \n
When in doubt, read the exact wording of the feature, subclass, or class. If a source explicitly says a cantrip counts toward spells known, that overrides the default convention. For most games, keeping cantrips separate from leveled spells known preserves flexibility and avoids the loss of daily utility when you expand your repertoire.
Useful Comparisons for Table Reference
Cantrips Versus Leveled Spells at a Glance
- Cantrips: always known, unlimited per day, no selection from a spells known pool.
- Leveled spells: selected from your class list, limited by spells known, refresh via preparation or long rest.
- Multiclass interaction: total spellcasting level matters for slots, but cantrip status follows the class that granted it.