Fourth magic spell

[cinder abyss]

if you get the pickaxehat(relic) you can do that already with the tome swing

[short skiff]

5 separate attacks is already enough 😭

[agile igloo]

six if you count wand bashing

[short skiff]

Or seven if you count beating them with physically with a book

[agile igloo]

wand bashing has the knockback mechanic though