How do critical hits work in 5e?

“When you score a critical hit, you get to roll extra dice for the attack’s damage against the target. To put it simply, critical hits in DnD 5e mean you automatically hit your target (regardless of their armor class) and double the number of damage dice your roll. The die type changes based on the weapon.

Do critical hits apply to spells?

Critical and critical fail apply to attack rolls for both spells and weapons. No other rolls can crit or critical fail, including ability checks and saves. I had always thought crits only applied to weapon attacks.

Does smite damage crit 5e?

The damage increases by 1d8 if the target is an undead or a fiend, to a maximum of 6d8. So you clearly choose to smite after you hit a creature. There’s no way of knowing if you hit, but not if you crit unless the DM is rolling all attack rolls.

Does divine smite double on a crit?

Since you can use after the roll dice? Yes, a critical hit can benefit Divine Smite. Ty!

Can a Firebolt crit?

When you get a critical hit with a spell attack, you roll all damage dice twice. So a critical hit with the cantrip Fire Bolt would deal 2d10 damage instead of 1d10. A critical hit with the 1st-level spell Chromatic Orb would do 6d8 damage instead of 3d8.

What is a critical hit in D&D?

A “critical hit” usually occurs in combat when you roll a 20 on an attack roll. It can also occur when you are trying to break an object and you roll a 20 on it. What Does a Crit Do? When you roll a critical hit, you keep your original damage roll and roll all of the dice again.

How does the AD&D 2nd edition critical hit system work?

From the AD&D 2nd Edition DMG: The simplest critical hit system makes every natural 20 rolled on the attack roll count for double damage. Note that there is no expectation here that the natural 20 is an automatic hit, only that it will count for double damage.

What is the rule on critical hits?

The rule on critical hits applies to attack rolls of any sort. You hurl a mote of fire at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 fire damage. Since this spell calls for an attack, all the rules for Making an Attack apply:

What dice are doubled by a critical hit in DND?

Any dice (but not fixed modifiers) that are part of the attack roll itself are doubled by the critical hit. The other answers are correct, but there’s an edge case worth considering that I haven’t seen addressed; it’s covered in point #3 below. Any attack is a critical hit on a natural 20 on the die.