Level 20 Homebrew Abilities: Part 1
Level 20 is where the rules start to feel like suggestions. If you’ve ever actually run a campaign at that tier, you know the problem: the existing capstone abilities are either underwhelming or so open-ended they put all the work back on the DM. These homebrew alternatives try to solve that by doing something the official abilities rarely bother with. They create consequences.
Barbarian: Super Rage
Your Strength, Dexterity, Constitution, and Charisma all increase by 2. Your Intelligence and Wisdom both drop by 4. You go up a size class. Your AC jumps by 4. Your HP jumps by 40. You can jump an additional 20 feet. And this lasts for 1d4 hours whether you want it to or not.
The Intelligence and Wisdom penalty is the design doing real work here. A caster with Hypnotic Pattern or Hold Monster is suddenly your worst nightmare, and that’s intentional. The size increase means you might not fit through a door. The duration means if you Super Rage to handle a bandit problem in a village, the village still has a problem afterward. It’s a once-per-long-rest nuclear option with genuine social fallout attached.
If you drop to 0 HP without having raged at all, you come back at 1 HP in Super Rage. This is almost entirely a “someone tried to assassinate you” clause, and it is extremely funny.
Bard: The Song
You write a song. It takes time, the DM decides how much. Once performed, it’s gone from your memory and you have to write a new one.
For one round, every creature within earshot rolls an extra d6 on every roll. Allies add it. Enemies subtract it. That scales in ways that get uncomfortable fast at high levels, which is why the cooldown needs to be tuned to your specific campaign.
The optional rider is the part worth stealing for any game: you can force everyone to dance. Not charmed, not incapacitated, just dancing. Creatures can still attack and use verbal spells, but somatic components are off the table because their hands are busy. Yes, this includes the lich. Yes, this includes Orcus, provided he has a stat block. The dance is compulsory. The resentment is not your problem.
Cleric: Three Options Worth Mixing
The existing level 20 Divine Intervention already works reasonably well, which is a rare thing to say about a capstone, so these are presented as additions rather than replacements.
The first is a divine teleport to a consecrated location, guaranteed to succeed, with a d10 rolled on arrival. A 9 or 10 fully heals the party. A 1 drops everyone into the space between planes for 1d4 rounds with a pit fiend. Seven-day cooldown.
The second is Divine Court. Your god hauls you before a celestial tribunal and you have to argue your case. The DM plays the god, the ruling is whatever fits the fiction, and there are no real mechanical rules because adding them would ruin it. If your god is a deity of cruelty, you’d better argue for the most cruelty. That’s the job.
Druid: The Ent
Summon a Treant (Challenge Rating 9, animate trees ability removed to prevent recursion issues). It lasts one hour. At any point during that hour, you can have it solidify into a permanent oak structure of your choosing. Bridge across a chasm, reinforcement for a wall, blocked doorway, whatever the moment needs. The structure lasts until something destroys it, which given the material described, won’t be easy.
The cooldown is photosynthesis-based: a set number of hours in direct sunlight, accumulated over however many days the DM decides. Outdoor campaigns benefit enormously. Dungeon crawls less so, which feels correct.