Susie's healing

Hey Kris, lemme show you my ultimate healing!

Susie, Chapter 2

Throughout Deltarune, Susie learns a spell which goes by many names: UltimatHeal (JP: ウルティマヒール UltimaHeal), UltraHeal (JP: ウルトラヒール), OKHeal (JP: OKヒール), Heal (JP: ヒール), and BetterHeal (JP: ベターヒール). It heals one party member by various amounts depending on the Chapter. In the overworld, Susie casts this spell by shooting a small green bullet at her intended target.

Main story

Chapter 2

In Chapter 2, Ralsei offers to teach Susie how to use healing magic after she gets hurt in Cyber City's Trash Zone. This presumably occurs while Susie and Ralsei are out of the party, and results in Susie learning UltimatHeal, which she demonstrates on Kris when they reunite at the ball-toss stalls. In Queen's Mansion, Susie attempts to heal Lancer when he collapses, to no avail. On the Weird Route, Susie instead mentions learning healing magic outside the entrance to Queen's Mansion.

Chapter 3

In Chapter 3, Susie's UltimatHeal is upgraded to UltraHeal, and its healing power increases per usage.

Chapter 4

In Chapter 4, Susie's UltraHeal is upgraded to OKHeal, which she attempts to use on Kris after they collapse in the Dark Sanctuary. When Ralsei arrives, he quickly dismisses Susie and uses Heal Prayer on Kris, which fully heals them. Discouraged, Susie's OKHeal downgrades to Heal, as she refuses to use it.

Susie overworld heal practice.gif — Susie practicing her healing magic

As the party progresses through the Dark Sanctuary, Susie can be seen practicing her healing magic. However, when she offers to heal Jackenstein after his battle, she quickly dismisses the idea and walks away, leaving Ralsei to attempt to heal him on his own. Susie declares to the Old Man that she plans to quit healing magic. The Old Man challenges her to use her healing magic on him, which causes her to inadvertently heal Jackenstein. This causes Heal to change back to OKHeal.

If the Hammer of Justice is fought, Susie shoots OKHeal at him during his battle and intentionally misses, providing a distraction which she uses to claim a strand of his hair and ending the battle. This causes OKHeal to be upgraded to BetterHeal. Otherwise, if this battle has not been completed by the time the Dark Sanctuary Fountain is sealed, the upgrade occurs when battling the Sound of Justice in the 2nd Sanctuary. During the battle, Susie uses BetterHeal on the Sound of Justice, which exposes its true nature as an animated statue.

At the top of the Titan's tower in the 3rd Sanctuary, Susie uses BetterHeal on Kris and Ralsei, which fully restores their HP.

Chapter 5

In Chapter 5, Susie's healing remains BetterHeal, unless no Chapter 4 completion data was used, in which case Susie has OKHeal and cannot upgrade it to BetterHeal.

Mechanics

Susie's healing costs 100% TP in Chapter 2, 90%-85% TP in Chapter 3, 85%-80% TP in Chapter 4, and 80%-75% TP after beating the Hammer of Justice or encountering the Sound of Justice. It restores a varying amount of HP per Chapter to a single ally.

In Chapter 2, the spell heals $M a g i c + 1$ HP, up to 15 with the Devilsknife, Dealmaker, and a RoyalPin or B.ShotBowtie equipped. In Chapter 3, the healing is equal to $M a g i c \cdot 1.5 + 5$ , and in Chapter 4, the healing is equal to $M a g i c \cdot 5 + 15$ , with the multiplier increasing to 7 after obtaining BetterHeal. During the battle against the Hammer of Justice, its healing is equal to $M a g i c \cdot 2 + 22$ .

Starting in Chapter 3, the spell increases in power and decreases in TP cost as it is used. Starting in Chapter 5, if the target is DOWN, the spell will increase its power in an attempt to revive them, up to double its initial power.

Name of spell	Obtained	Base stats	Improvement	Maximum improvement
UltimatHeal	Chapter 2 - Cyber City - Heights	TP Cost = 100% $H e a l i n g = (M a g i c \times 1) + 1$	N/A	N/A
UltraHeal	Chapter 3 - Initial	TP Cost = 90% $H e a l i n g = (M a g i c \times 1.5) + 5$	-1% TP cost per use +1 HP per use Maxes out in 5 uses	TP Cost = 85% $H e a l i n g = (M a g i c \times 1.5) + 10$
OKHeal	Chapter 4 - Initial (regained after Jackenstein fight) Chapter 5 - Initial	TP Cost = 85% $H e a l i n g = (M a g i c \times 5) + 15$ When fighting Hammer of Justice: $H e a l i n g = (M a g i c \times 2) + 22$ With YellowHat: $H e a l i n g = ((M a g i c \times 5) + 15) \times 1.2$	-1% TP cost after using 1, 4, 7, 10, 13 times^[2] +2 HP per use Maxes out in 15 uses (Previous improvement uses of UltraHeal are counted)	TP Cost = 80% $H e a l i n g = (M a g i c \times 5) + 45$ When fighting Hammer of Justice: $H e a l i n g = (M a g i c \times 2) + 52$ With YellowHat: $H e a l i n g = (((M a g i c \times 5) + 15) \times 1.2) + 30$
Heal	Chapter 4 - After dismissed by Ralsei (reverts to OKHeal after Jackenstein fight)	TP Cost = 102% (While this spell is unusable in normal gameplay, if the game is hacked to allow using the spell in battle, Susie casts OKHeal.^[3])	N/A	N/A
BetterHeal	Chapter 4 - After beating Hammer of Justice or encountering Sound of Justice Chapter 5 - When using Chapter 4 Completion Data that previously unlocked it	TP Cost = 80% $H e a l i n g = (M a g i c \times 7) + 15$ With YellowHat: $H e a l i n g = ((M a g i c \times 7) + 15) \times 1.2$	-1% TP cost after using 1, 4, 7, 10, 13 times^[4]+2 HP per use Maxes out in 15 uses (Previous improvement uses of UltraHeal and OKHeal are counted)	TP Cost = 75% $H e a l i n g = (M a g i c \times 7) + 45$ With YellowHat: $H e a l i n g = (((M a g i c \times 7) + 15) \times 1.2) + 30$

Any uses performed in Chapter 3, up to five uses, carry over to Chapter 4. These count toward the 15 uses, and the spell's stats are recalculated as if all transferred uses originated in Chapter 4. Once BetterHeal is obtained, the cost drops by 5%, but progress on improving it still counts and can lower the TP cost to 75%. This progress can be measured from Susie's "healing" stat that appears starting in Chapter 4, going up to 45 if it is progressed fully before the fight with the Hammer of Justice. The maximum healing stat becomes 30 after the Hammer of Justice or Sound of Justice have been defeated.^{[note 1]}^[5]

Ultraheal becomes OKHeal at the start of Chapter 4, and is possible to 'train up' at the Castle Town Dojo even before the Chapter's Dark Worlds. However, after Ralsei lectures Susie after healing Kris's bleeding, Susie will refuse to heal with the spell, with the outside battle TP becoming ??% and in-battle TP being 102% until after healing Jackenstein, causing Susie's Heal to revert back to OKHeal and thus become usable again.

After beating the Hammer of Justice or encountering the Sound of Justice, BetterHeal becomes an expensive yet viable healing option, healing more than Ralsei's Heal Prayer at the cost of being significantly more expensive in TP cost. It also has the unique benefit of being able to cast on the same turn as the last enemy is spared (which Ralsei cannot do, as sparing enemies before his Heal Prayer takes place ends the battle without healing), by having Susie heal and then Ralsei spare the last enemy. As of Chapter 5, this spell can heal as much as 191 HP with Devilsknife, YellowHat, and SethSpecs equipped with Susie's healing stat being at 17 (without stat bonuses from defeating enemies).

When equipped with the YellowHat, the 1.2× multiplier only applies to the base stats, with improvement stats being applied unchanged.

Notes

↑ The healing stat additionally scales with Kris's magic stat, which is always zero and thus has no impact. It is likely intended to scale with Susie's magic stat instead.

References

↑ gml_GlobalScript_scr_spelltext script, line 52, Chapter 2
↑ gml_GlobalScript_scr_spellinfo script, lines 128–155, Chapter 4
↑ What if You Use Susie's 102% TP Heal? [ Deltarune chapter 4 ] on YouTube
↑ gml_GlobalScript_scr_spellinfo script, lines 172–197, Chapter 4
↑ gml_Object_obj_darkcontroller_Draw_0 script, lines 462–465, Chapter 4

[5] The healing stat additionally scales with Kris's magic stat, which is always zero and thus has no impact. It is likely intended to scale with Susie's magic stat instead.

[1] _GlobalScript_scr_spelltext script, line 52, Chapter 2

[2] _GlobalScript_scr_spellinfo script, lines 128–155, Chapter 4

[3] What if You Use Susie's 102% TP Heal? [ Deltarune chapter 4 ] on YouTube

[4] _GlobalScript_scr_spellinfo script, lines 172–197, Chapter 4

[6] _Object_obj_darkcontroller_Draw_0 script, lines 462–465, Chapter 4

[1]

[2]

[3]

[4]

[note 1]

[5]