Spells are either attacking, healing or pacifying and are often used by Monsters and Darkners.
Following is a list of all spells currently in DELTARUNE.
Offensive Spells[]
Rude Buster[]
"Deals moderate Rude-elemental damage to one foe. Depends on Attack and Magic."
Costs 50% TP, 40% TP while Devilsknife is equipped. An attack that does moderately more damage than the standard Fight action, in the form of "Rude Damage". Rude Buster deals fixed damage based on Susie's Attack and Magic, ignoring enemy defense. Pressing "[CONFIRM]" button during the attack makes it deal 30 more damage. As of Chapter 2, this can deal a maximum of 365 damage with the Devilsknife, Dealmaker, and Spike Band equipped (without stat bonuses from defeating enemies in Chapter 2).
Doing this attack makes Susie launch a purple arrow at the targeted enemy.
Susie uses Rude Buster in several cutscenes, such as on Spamton NEO to save Kris, and on Queen.