In an effort to make the game more interactive, I'm strongly considering house-ruling the Surprised condition to read "this creature has disadvantage on initiative rolls" instead of outright skipping their turns.

For reference, the SRD defines Surprise as follows:

If you’re surprised, you can’t move or take an action on your first turn of the combat, and you can’t take a reaction until that turn ends. A member of a group can be surprised even if the other members aren’t.

Would this house rule make any existing mechanics redundant or obsolete? What other things grant disadvantage to initiative?


2 Answers 2


The following mechanics would be affected:

  • Its possible that a surprised person with a high initiative modifier and/or who got lucky might act first; totally nerfing the use of stealth by their opponent.
  • Spending inspiration will negate the effects of surprise totally for PCs
  • The ability to take reactions before your turn when surprised is a huge benefit. Being able to take an opportunity attack cuts down movement options for the surprisers and being able to cast a Shield spell is golden.
  • You eliminate the possibility that the non-surprised people may act twice before the surprised person acts - this will make surprise a much less dangerous situation all around.
  • It would make the assassin roguish archetype pretty useless

Existing mechanics made redundant or obsolete?

Surprise (and by extension Stealth) is effectively redundant or obsolete. It would have almost the same effect and be much simpler if you just eliminated surprise altogether.

What other things grant disadvantage to initiative?

Anything that gives disadvantage to a Dexterity check gives disadvantage to Initiative because initiative is a Dexterity check. Worth noting, in passing, that certain classes "Jack of All Trades" ability gives half proficiency on initiative checks as it is an ability check in which you are not proficient.

  • 1
    \$\begingroup\$ You may also want to mention the "assassin" roguish archetype, which converts all hits on a surprised creature into crits. This houserule would massively disadvantage this archetype \$\endgroup\$
    – xanderh
    Feb 29, 2016 at 12:12
  • \$\begingroup\$ Yes, Assassinate would take a huge blow as a result of this. \$\endgroup\$
    – Airatome
    Feb 29, 2016 at 15:14
  • \$\begingroup\$ I actually wasn't aware that Initiative counted as an ability check. That definitely changes my perspective! \$\endgroup\$
    – Robert
    Mar 4, 2016 at 4:34

Recall that initiative is a Dexterity check. So yes, your Surprise houserule would overlap with plenty of things.

There are plenty of ways to incur disadvantage on a DEX check. Some include:

  • any level of exhaustion
  • poison
  • frightened
  • the Contagion spell
  • Bestow Curse or Hex (if the caster chooses DEX)
  • &c. &c. &c.
  • \$\begingroup\$ Initiative is a check? I had no idea it interacted with exhaustion! \$\endgroup\$
    – Robert
    Mar 4, 2016 at 4:33
  • \$\begingroup\$ Same here. I guess I was just so used to initiative being its own thing in 3.5e that it never occurred to me that now it's just one more kind of ability check! \$\endgroup\$ Jun 22, 2016 at 19:39
  • \$\begingroup\$ @DanHenderson -- initiative has always been an ability check. Think of it as a reflex(dex) contest; ie who can act the fastest. \$\endgroup\$
    – ravery
    Apr 7, 2018 at 13:43

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