Do you roll twice as many damage dice for a critical hit?

Yes, you roll twice as many damage dice for the spell on a crit The rule on critical hits on page 196 of the PHB says: When you score a critical hit, you get to roll extra dice for the attack’s damage against the target. Roll all of the attack’s damage dice twice and add then together.

When do you get a critical hit do double damage?

This applies to all attacks, whether they are melee weapon attacks, ranged weapon attacks, melee spell attacks, ranged spell attacks, etc. If you are rolling a d20 versus AC, then you score a critical hit on a 20, and unless you have a class feature, feat, etc. that says otherwise, you roll damage dice twice when you get a critical hit.

What happens when you roll a d20 on an attack?

If the d20 roll for an attack is a 20, the attack hits regardless of any modifiers or the target’s AC. In addition, the attack is a critical hit, as explained later in this chapter. When you score a critical hit, you get to roll extra dice for the attack’s damage against the target.

When do you roll brutal critical weapon die?

Brutal Critical Beginning at 9th level, you can roll one additional weapon damage die when determining the extra damage for a critical hit with a melee attack.

How to make a spell critical do double damage?

Roll all of the attack’s damage dice twice and add then together. Then add any relevant modifiers as normal. Note that this only refers to the attack – it doesn’t say weapon attack, or anything else that would mean that this did not apply to spell attacks. When you get a critical hit with a spell attack, you roll all damage dice twice.

How much damage does an enlarge spell do?

+1d4 damage is paltry for an Enlarge spell. If I become Large, I expect to do what a Large creature does. They should have made consistent rules for oversized weapons, then let players use those when they become enlarged, and balance Enlarge to the appropriate spell level and duration.