Hot Cloud

Spell scene

Choose the units and replay the cast with the cartridge’s sprites and sounds.

LoopSoundLoading scene…

Volume100 %Scene time0.00 s

Spell drawing

Rune 1 of 2

CasterReceiver · Ally or enemy

FacingExample outcome

Distance from the shot: 80 pxStroke quality: 0.85Show applied status

Illustrative reconstruction: frames, palettes and effect timings come from the ROM. Part placement and drawing speed are choices of this viewer.

Outcome and status application are selected for the demonstration; they are not a battle roll.

How to cast it

Draw these runes in order, each in one stroke, while holding L.

MP cost

It goes down as Isaac’s level in each rune’s element rises.

Element level	1–10	11–20	21–30	31–40	41–50
MP	50	47	44	42	39

Aim

Draw a circle. Touch a centre inside the range and drag out to set the radius.

Affects: Allies and enemies

What it does

Power: 20
Duration: 8 s · 480 ticks
Cast range: 100 px
Radius: 90 px
Hits every: 1 s · 60 ticks
Hits: 8

Status: Burn

Chance: 10.2 %
Lasts: 20 s · 1200 ticks
Strength: 25

At element level 1–10 with a drawing quality of 1. It rises with both.

Power at cast

This spell uses its power as it is, without the caster’s magic or the drawing quality.

Similar spells

The 15 spells that run on the same game code as this one. Only what changes between them is shown.

A cloud hits each unit inside it every so often with its raw power: the caster’s magic, the drawing and the rank do not scale it (they only raise the chance of its status). The hits are counted, not added up over time: a 360-tick cloud that hits every 60 hits 6 times; one of 362 ticks, 7.

Spells	Element	MP (level 1–10)	Cast range	Duration	Hits	Radius	Power	Status chance	Status lasts	Status	Status strength
Red Cloud	Fire	30	90 px	6 s	6	40 px	20	10.2 %	20 s	Burn	20
Hot Cloud	Fire	50	100 px	8 s	8	90 px	20	10.2 %	20 s	Burn	25
Blaze Cloud	Fire	65	120 px	9 s	9	90 px	40	11.7 %	20 s	Burn	35
Frost Cloud	Water	30	90 px	6 s	6	40 px	20	7.8 %	3 s	Freeze	0
Cool Cloud	Water	50	100 px	6 s	6	90 px	20	7.8 %	3 s	Freeze	0
Ice Cloud	Water	65	120 px	6 s	6	90 px	40	9.4 %	3 s	Freeze	0
Dust Cloud	Earth	30	90 px	6 s	6	40 px	20	10.2 %	18 s	Stat down	—
Sand Cloud	Earth	50	100 px	8 s	8	90 px	20	10.2 %	18 s	Stat down	—
Sand Storm	Earth	65	120 px	9 s	9	90 px	40	10.9 %	18 s	Stat down	—
Sleep Wind	Light	30	90 px	6 s	6	40 px	20	9.4 %	14 s	Charm	—
Sleep Gale	Light	50	100 px	8 s	8	90 px	20	9.4 %	14 s	Charm	—
Sleep Storm	Light	65	120 px	9 s	9	90 px	40	10.2 %	14 s	Charm	—
Black Cloud	Dark	30	90 px	6 s	6	40 px	150	—	—	—	—
Void Cloud	Dark	50	100 px	6 s	6	90 px	180	—	—	—	—
Black Void	Dark	65	120 px	6 s	6	90 px	220	—	—	—	—

All spell families