SpellVerified on build 25605617

Guiding Bolt

Level: Level 1 · Evocation
Cost: Action + 1st-level spell slot
Range: 18 m
Roll: Ranged spell attack
Damage: 4d6 Radiant
Components: Verbal, Somatic

The next Attack Roll against this target has Advantage.

Damage by spell slot

Average at 1st level

4d6 Radiant

Average at 6th level

31.5

9d6 Radiant

Per slot level

+3.5

each slot above 1st

1st-level slot14 4d6 Radiant
2nd-level slot17.5 5d6 Radiant
3rd-level slot21 6d6 Radiant
4th-level slot24.5 7d6 Radiant
5th-level slot28 8d6 Radiant
6th-level slot31.5 9d6 Radiant

Average damage of one cast at each spell slot, from the game's own upcast entries.

Slot	Damage	Average
1st	4d6 Radiant	14
2nd	5d6 Radiant	17.5
3rd	6d6 Radiant	21
4th	7d6 Radiant	24.5
5th	8d6 Radiant	28
6th	9d6 Radiant	31.5

Chance to hit and damage per cast

Level 1, +3 modifier
Level 5, +4 modifier
Level 12, +5 modifier

Average damage of one cast, misses included (at its 1st-level slot): d20 + proficiency + spellcasting modifier against the target's AC; a natural 20 is a critical hit and doubles the dice.

Show the numbers

Target AC	Level 1, +3 modifier	Level 5, +4 modifier	Level 12, +5 modifier
10	11.9	13.3	14
11	11.2	12.6	14
12	10.5	11.9	13.3
13	9.8	11.2	12.6
14	9.1	10.5	11.9
15	8.4	9.8	11.2
16	7.7	9.1	10.5
17	7	8.4	9.8
18	6.3	7.7	9.1
19	5.6	7	8.4
20	4.9	6.3	7.7
21	4.2	5.6	7
22	3.5	4.9	6.3
23	2.8	4.2	5.6
24	2.1	3.5	4.9
25	1.4	2.8	4.2

Caster	AC 12	AC 15	AC 18	AC 21
Level 1, +3 (attack +5)	70%	55%	40%	25%
Level 5, +4 (attack +7)	80%	65%	50%	35%
Level 12, +5 (attack +9)	90%	75%	60%	45%

Chance to hit per attack roll.

Who can get it

From the game's class, subclass and race progression tables (the level is the class or character level it first becomes available at), feat choices, equipment boosts and scrolls.