3
\$\begingroup\$

I was bored, so I decided to try to calculate what could be the highest total result one could obtain for a skill check.

Answers can include officially published material, including magic items - but no Unearthed Arcana. Wish is also not to be included.

\$\endgroup\$
  • 1
    \$\begingroup\$ Are you allowing for variant rules to be used? For example, proficiency dice (which results in a 1d12 instead of a +6 for a high level proficiency) \$\endgroup\$ – David Coffron Apr 2 at 14:45
  • \$\begingroup\$ Oh? I never heard of that before. I should check it out. \$\endgroup\$ – Gael L Apr 2 at 15:13
  • \$\begingroup\$ Unearthed arcana is a no, but any official magic item is a yes. And I guess I will do that, ok. \$\endgroup\$ – Gael L Apr 2 at 15:27
  • \$\begingroup\$ @GaelL: It's an optional rule in the DMG (among other options for changes/replacements to proficiency bonuses). \$\endgroup\$ – V2Blast Apr 3 at 1:13
9
\$\begingroup\$

The maximum result for a skill check is 123

The Rules

In order to maximize a skill check, we must use the following variant rules:

The Party

Our party consists of three characters:

  • A bard 15 -------------------------------------------------------- (for guidance via Magical Secrets and Bardic Inspiration)
  • A Circle of the Dreams druid 6/ Wild Magic sorcerer 6 ---- (for pass without trace, Bend Luck, and Hearth of Moonlight and Shadow)
  • A hobgoblin rogue 1/ranger 10/The Fiend warlock 6 ------- (for Expertise, Save Face, Hide in Plain Sight and Dark One's Own Luck)

The Gear

  • A luckstone
  • An Ioun Stone of mastery
  • 5 manuals of quickness of action
  • fresh mud, dirt, plants, soot, and other naturally occurring materials

The Calculation

  • Dexterity score is 30 (or a +10 modifier)
  • a Hero Point adds 1d6 (maximum 6)
  • Bardic Inspiration adds 1d12 (maximum 12)
  • Bend Luck adds 1d4 (maximum 4)
  • pass without trace adds 10
  • guidance adds 1d4 (maximum 4)
  • Hearth of Moonlight and Shadow adds 5
  • Hide in Plain Sight adds 10
  • Expertise results in doubled 1d12 (maximum of 24)
  • Dark One's Own Luck adds 1d10 (maximum 10)
  • Save Face adds 5
  • luckstone adds 1
  • Ioun Stone of mastery adds 2 (thanks to expertise)
  • Roll a 20

Grand total: 123

side note: the probability of rolling maximum on all of the involved dice is 1 in 2.764.800 or 1 in 1.417.846 with advantage

For a detailed look at how this check is performed see below:

The Check

The check will be performing is a Stealth check. Here is the procedure:

  1. The hobgoblin ("Hobby" from now on) assigns 15/14/13 to his starting Dexterity/Charisma/Wisdom and proficiency in Stealth from his background
    • Bonus so far: +3+1d12
  2. Hobby chooses Stealth for one of his Expertise options (rogue)
    • Bonus so far: +3+2*(1d12)
  3. Hobby chooses +2 Dexterity for his Ability Score Increases (ranger and warlock) leaving him with 20 Dexterity.
    • Bonus so far: +5+2*(1d12)
  4. Hobby reads 5 manuals of quickness of action.
    • Bonus so far: +10+2*(1d12)
  5. Hobby attunes to a luckstone
    • Bonus so far: +11+2*(1d12)
  6. Hobby attunes to an Ioun Stone of mastery
    • Bonus so far: +11+2*(1d12+1)
  7. The bard ("Darb" from now on) uses Bardic Inspiration on Hobby
    • Bonus so far: +11+2*(1d12+1)+1d12
  8. Darb casts guidance on Hobby
    • Bonus so far: +11+2*(1d12+1)+1d12+1d4
  9. The druid/sorcerer (Soruid from now on) pass without trace on Hobby
    • Bonus so far: +21+2*(1d12+1)+1d12+1d4
  10. Hobby creates a camouflage out of fresh mud, dirt, plants, soot, and other naturally occurring materials and presses up against a cave wall (Hide in Plain Sight)
    • Bonus so far: +31+2*(1d12+1)+1d12+1d4
  11. The party starts a short rest and Soruid uses Hearth of Moonlight and Shadow
    • Bonus so far: +36+2*(1d12+1)+1d12+1d4
  12. Hobby makes a contested Stealth check vs a Perception check greater than 119 and rolls maximum on every die
    • Result so far: 98
  13. Hobby uses Dark Ones Own Luck rolling a 10
    • Result so far: 108
  14. Soruid uses Bend Luck rolling a 4
    • Result so far: 112
  15. Hobby uses a Hero Point rolling a 6
    • Result so far: 118
  16. Hobby fails the check and uses Save Face
    • Result: 123

And that's how you hide from a nosy god.

\$\endgroup\$
  • 1
    \$\begingroup\$ Yes, that would change the probability but not the maximum. I didn't feel like listing all the probabilities (because the Lucky feat is a thing), so I just went with the two most common. \$\endgroup\$ – David Coffron Apr 2 at 17:56
  • 1
    \$\begingroup\$ @T.J.L. I could have sworn pass without trace was not concentration. Although I think it is weird that you shouted -1 for that small error (instead of just reminding me of the factor). It's been fixed \$\endgroup\$ – David Coffron Apr 2 at 18:21
  • 2
    \$\begingroup\$ Step 16: How is hobby failing any check with a roll of 118? The highest DC given by the game is 30 which is labelled as "nearly impossible" \$\endgroup\$ – illustro Apr 2 at 18:25
  • \$\begingroup\$ @illustro That's why I made it a contested check. Someone rolled 119 on Perception. Also, adventure modules have been known to have higher DCs \$\endgroup\$ – David Coffron Apr 2 at 18:25
  • 1
    \$\begingroup\$ @illustro The chance is not calculable. That other character may have just used Divine Intervention, wish, or something to gain a ridiculous bonus on their next Perception check. It is not factored into my analysis \$\endgroup\$ – David Coffron Apr 2 at 18:28

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.