On units
On units: Burn Up and 1 more
Damages and burns an enemy.
2 spells the game runs with the same code.
DamagesBurnsHow is the total effect worked out?
Total effect: what one unit receives over the whole spell. The real figure depends on who casts and who receives it, so it is worked out for a fixed reference: the caster has magic 30 (Isaac at level 1), the element at level 1–10 and a perfect stroke (quality 1); the receiver has defense and magic defense 0, a neutral element and no weakness or shield; no random factor. “up to” is a maximum that needs every hit to land, or the unit to stay where the spell reaches it; “not confirmed” marks what the code read so far does not settle.
To cast a spell you draw its runes, each in one stroke and each scored on its own: a long stroke with many turns takes longer and gives more chances to slip out of the shape. Each spell shows its runes, drawn from their strokes, with their level (I to III) and how long their strokes are added up, in widths of the rune: the game scales the drawing, so its size on screen does not count. A higher level is usually longer, but not always (Water II is shorter than Wind I).
Best spells · Which spells pay off and why, each with the number behind it. The filters leave only what Isaac already has at hand.
Fire · Level I
Total damage
855 · Strong burn 45 × 19 (always)
Higher is stronger.
It adds up every hit or pulse one unit receives during the spell.
- Affects
- Enemies
- Status chance
- 100 %
- Status lasts
- 20 s
Worked out for a caster with magic 30 and a perfect stroke, against defense and magic defense 0, with no random factor.
Per MP
Higher is better: it gives more for each MP you spend.
Total damage for each MP point: 855 ÷ 50 = 17.1. It compares which spell gives more for the MP it costs.
Around the middle: it beats 41 % of the 234 damage spells.
A high per MP does not make it the strongest spell: the total says that.
With Isaac’s full bar he casts it not once in a row with 30 MP (level 1) and 2 times with 130 MP (level 50).
Together: 0 and 1,710 of damage.
MP
What it costs with the element at level 1–10; with the element at level 41–50 it costs 38.
With Isaac’s full bar he casts it not once in a row with 30 MP (level 1) and 2 times with 130 MP (level 50).
Together: 0 and 1,710 of damage.
In a battle Isaac recovers 5 MP every 0.5 s, and 1 more for each rise in a row without chanting, up to +5. Each mana crystal of his adds 1 more per rise (2 MP/s). After a chant the first rise comes after 3 s, 0.5 s sooner for each crystal, 0.5 s at least.
Range 100 px · Lasts 1 s
Fire · Level II
Total damage
855 · Strong burn 45 × 19 (always)
Higher is stronger.
It adds up every hit or pulse one unit receives during the spell.
- Affects
- Enemies
- Status chance
- 100 %
- Status lasts
- 20 s
Worked out for a caster with magic 30 and a perfect stroke, against defense and magic defense 0, with no random factor.
Per MP
Higher is better: it gives more for each MP you spend.
Total damage for each MP point: 855 ÷ 70 = 12.2. It compares which spell gives more for the MP it costs.
Around the middle: it beats 27 % of the 234 damage spells.
A high per MP does not make it the strongest spell: the total says that.
With Isaac’s full bar he casts it not once in a row with 30 MP (level 1) and once with 130 MP (level 50).
Together: 0 and 855 of damage.
MP
What it costs with the element at level 1–10; with the element at level 41–50 it costs 54.
With Isaac’s full bar he casts it not once in a row with 30 MP (level 1) and once with 130 MP (level 50).
Together: 0 and 855 of damage.
In a battle Isaac recovers 5 MP every 0.5 s, and 1 more for each rise in a row without chanting, up to +5. Each mana crystal of his adds 1 more per rise (2 MP/s). After a chant the first rise comes after 3 s, 0.5 s sooner for each crystal, 0.5 s at least.
Range 110 px · Radius 50 px · Lasts 1 s
Worked out for a caster with magic 30 and a perfect stroke, against defense and magic defense 0, with no random factor. How is it worked out?
Burn Up
Fire · Level I
Cost
- MP (level 1–10)
- 50
- Runes
- IIII
- Stroke (rune widths)
- 6.1
Range and area
- Cast range
- 100 px
- Radius
- —
- Aim
- Tap a unit
Roast Up
Fire · Level II
Total damage
855
MP
70
12.2 per MP
Strong burn 45 × 19 (always)
DamagesBurnsCost
- MP (level 1–10)
- 70
- Runes
- IIIII
- Stroke (rune widths)
- 7.0
Range and area
- Cast range
- 110 px
- Radius
- 50 px
- Aim
- Draw a circle
Grouped by the effect class and subkind of each spell in the game’s data, as the research did; the notes come from reading the code, not from playing.