Felix doesnt want to waste his most powerful magic on the creature and decides to instead attack with one of his lesser spells. "A little bit of acid should do the trick."
Spoiler: Resources
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Arcane reservoir: 4
Spells: 0(6) 1(3) 2(2)
Spells prepared
0: Prestidigitation, Detect Magic, Dancing Lights, Arcane Mark, Acid Splash, Detect Poison
1: Feather Fall, Enlarge Person, Endure Elements, Magic Missile
2:Invisibility, Bullīs strength
Spoiler: OOC
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Ranged Touch attack: (1d20+3)[5]
Damage (1d3)[2]