Spell Fumble Table Natural 1 → d100 | The Fiber Inc

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When a natural 1 occurs on a spell attack roll or casting check:
Roll d100 on the Spell Fumble Table.
Effects may include misfires, feedback, or area distortion.
Low rolls (01–25) are the most catastrophic.

Spell Fumble Table (d100):

d100	Result
01–05	Spell backfires: you take half of its damage (or 1d6 per spell level if non-damaging).
06–10	Arcane surge: roll on the Wild Magic Surge table (if available).
11–15	Spell fizzles: slot is expended, no effect.
16–20	Magical feedback: you are stunned until the start of your next turn.
21–25	Catastrophic surge: all creatures within 10 ft take 1d6 force damage per spell level.
26–30	Wild misdirection: spell targets a random creature within range.
31–35	Your focus shatters: next spell you cast is at disadvantage.
36–40	Magical resonance: you cannot cast spells until the end of your next turn.
41–50	Your spell sputters: effect occurs at half potency (half damage, half duration, or DM’s ruling).
51–60	Your spell echoes: harmless but bright/soundy magical display reveals your position.
61–70	Spell rebounds: make a DC 15 Constitution save or suffer a level of Exhaustion.
71–80	Your spell destabilizes: the area becomes difficult terrain within 10 ft until your next turn.
81–90	Your spell leaks magic: nearest magic item flickers or deactivates for 1 round.
91–95	You lose focus: cannot take reactions until your next turn.
96–100	Arcane chaos: DM invents a unique misfire (wild effect, summoning, inversion).