Dungeons and Dragons – Mystara
Magical Item – Epic Boons Overview
- Source: Dungeon Masters Guide (dmg) and Xanathar’s Guide to Everything (xge)
- Epic Boons Overview
- Known Epic Boons
- Design Notes
- Content Updates

Epic Boons – Overview
An epic boon is a special power available only to 20th level characters. Characters at that level gain such boons only if you want them to and only when you feel it’s appropriate. Epic boons are best awarded after the characters complete a major quest, or accomplish something else particularly notable. A character might gain an epic boon after destroying an evil artifact, defeating an ancient dragon, or halting an incursion from the Outer Planes.
Epic boons can also be used as a form of advancement, a way to provide greater power to characters who have no more levels to gain. With this approach, consider awarding one epic boon to each character for every 30,000 XP he or she earns above 355,000 XP.
You determine which epic boon a character gains. Ideally, the boon you pick is something the character would put to use in future adventures. You can allow a player to select a boon for his or her character, subject to your approval.
Whatever boon a character ends up with, consider its place in your story and world. Many of the boons are extraordinary and represent the gradual transformation of a character into something resembling a demigod. The acquisition of a boon might visibly transform a character. For example, the eyes of a character with the Boon of True sight might glow when he or she feels strong emotion, and a character who has the Boon of High Magic might have faint motes of light glimmering around his or her head. Also, decide how the boon first appears. Does the boon appear spontaneously and mysteriously? Or does a being of cosmic power manifest to bestow it? The bestowal of a boon can itself be an exciting scene in an adventure.
The text of a boon addresses its user. Unless a boon says otherwise, a character can’t gain it more than once.
Known Epic Boons
Alternatives to Epic Boons
You might decide to grant one of the following rewards to a 20th-level character, instead of awarding an epic boon. These two options can be awarded to a character more than once.
- Ability Score Improvement. The character can increase one ability score by 2 or increase two ability scores by l each. The ability score can now be increased above 20, up to a maximum of 30.
- New Feat. The character gains a new feat chosen by the player, but subject to your approval.
Boon of Combat Prowess
When you miss with a melee weapon attack, you can choose to hit instead. Once you use this boon, you can’t use it again until you finish a short rest.
Boon of Dimensional Travel
As an action, you can cast the misty step spell, without using a spell slot or any components. Once you do so, you can’t use this boon again until you finish a short rest.
Boon of Fate
When another creature that you can see within 60 feet of you makes an ability check, an attack roll, or a saving throw, you can roll a d10 and apply the result as a bonus or penalty to the roll. Once you use this boon, you can’t use it again until you finish a short rest.
Boon of Fortitude
Your hit point maximum increases by 40.
Boon of High Magic
You gain one 9th-level spell slot, provided that you already have one.
Boon of Immortality
You stop aging. You are immune to any effect that would age you, and you can’t die from old age.
Boon of Invincibility
When you take damage from any source, you can reduce that damage to 0. Once you use this boon, you can’t use it again until you finish a short rest.
Boon of Irresistible Offense
You can bypass the damage resistances of any creature.
Boon of Luck
You can add a d10 roll to any ability check, attack roll, or saving throw you make. Once you use this boon, you can’t use it again until you finish a short rest.
Boon of Magic Resistance
You have advantage on saving throws against spells and other magical effects.
Boon of Peerless Aim
You can give yourself a +20 bonus to a ranged attack roll you make. Once you use this boon, you can’t use it again until you finish a short rest.
Boon of Perfect Health
You are immune to all diseases and poisons, and you have advantage on Constitution saving throws.
Boon of Planar Travel
When you gain this boon, choose a plane of existence other than the Material Plane. You can now use an action to cast the plane shift spell (no spell slot or components required), targeting yourself only, and travel to the chosen plane, or from that plane back to the Material Plane. Once you use this boon, you can’t use it again until you finish a short rest.
Boon of Quick Casting
Choose one of your spells of 1st through 3rd level that has a casting time of 1 action. That spell’s casting time is now 1 bonus action for you.
Boon of Recovery
You can use a bonus action to regain a number of hit points equal to half your hit point maximum. Once you use this boon, you can’t use it again until you finish a long rest.
Boon of Resilience
You have resistance to bludgeoning, piercing, and slashing damage from non-magical weapons.
Boon of Skill Proficiency
You gain proficiency in all skills.
Boon of Speed
Your walking speed increases by 30 feet.
In addition, you can use a bonus action to take the Dash or Disengage action. Once you do so, you can’t do so again until you finish a short rest.
Boon of Spell Mastery
Choose one 1st-level sorcerer, warlock, or wizard spell that you can cast. You can now cast that spell at its lowest level without expending a spell slot.
Boon of Spell Recall
You can cast any spell you know or have prepared without expending a spell slot. Once you do so, you can use this boon again until you finish a long rest.
Boon of the Fire Soul
You have immunity to fire damage. You can also cast burning hands (save DC 15) at will, without using a spell slot or any components.
Boon of the Night Spirit
While completely in an area of dim light or darkness, you can become invisible as an action. You remain invisible until you take an action or a reaction.
Boon of the Stormborn
You have immunity to lightning and thunder damage. You can also cast thunderwave (save DC 15) at will, without using a spell slot or any components.
Boon of the Unfettered
You have advantage on ability checks made to resist being grappled. In addition, you can use an action to automatically escape a grapple or free yourself of restraints of any kind.
Boon of Truesight
You have truesight out to a range of 60 feet.
Boon of Undetectability
You gain a +10 bonus to Dexterity (Stealth) checks, and you can’t be detected or targeted by divination magic, including scrying sensors.
Design Notes
This section is still under consideration for how it will fit into the setting ongoing. But I am expecting to have boons come as gifts from the gods only, so different gods might offer different boons in line with their interests.
Content Updates
- 2021-08-26 – Update to layout and menu.
Magical Items
Magical Items in Mystara Overview, Campaign Items, Creating Unique Items
Downtime Buying and Selling Items or Crafting Items
Types: Armour, Blessings, Books, Charm, Epic Boons, Marks of Prestige, Potion, Ring, Rod, Rune, Scroll, Staff, Wand Overview, Weapon, Wondrous Items
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