Weave Malfuction

“I swear this never happens… I mean, it’s not supposed to happen!” - Talindra, the Elven Wizard struggling to control her magic staff.

7th-Level Transmutation

Classes: Wizard, Warlock
Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a shard of obsidian and a pinch of powdered lead)
Duration: Concentration, up to 1 minute

Description:

You disrupt the flow of the Weave around a magical effect, spell, or enchanted item, introducing unpredictable errors that cause it to malfunction. Choose one of the following targets within range:

• Ongoing Spell: If the target is an ongoing spell effect (e.g., Wall of Force, Greater Invisibility), the caster of the spell must succeed on a spellcasting ability saving throw.
• Magical Item: If the target is a magical item, make an Intelligence (Arcana) check against a DC determined by the item’s rarity (Common DC 15, Uncommon DC 17, Rare DC 20, Very Rare DC 25, Legendary DC 30).

On a success, the target spell or item malfunctions. Roll on the Weave Malfunction Table to determine the specific effect.

Weave Malfunction Table:

1. Energy Surge: The effect produces a burst of magical energy, dealing 4d10 force damage to all creatures within 10 feet.
2. Reversal: The effect’s function is reversed (e.g., healing spells deal damage, shields weaken defenses).
3. Wild Magic Spike: The target triggers a random effect from the Wild Magic Surge table (PHB).
4. Dormancy: The effect or item becomes nonfunctional for 1d10 minutes.
5. Overload: The effect continues but uncontrollably intensifies (e.g., a Fireball expands by double its normal radius).
6. Feedback Loop: The caster or user of the item takes 5d10 psychic damage.
7. Partial Corruption: The effect works at half its intended power (e.g., reduced spell duration, halved damage, diminished bonuses).
8. Higher Collapse: The spell or item ceases functioning entirely for 1d10 days.

At Higher Levels:

When you cast this spell using a spell slot of 7th level or higher, you gain the following benefits:

• The range increases by 10 feet for each slot level above 6th.

• You can target an additional spell or magical item within range.

• The table now has the following additional effects depending on the level of the spell slot used:

8th Level:

• 9. Space distortion: The effect or item is displaced 1d10 feet in a random direction.
• 10. Temporal Anomaly: The effect or item is frozen in time and place for 1d10 rounds.

9th Level:

• 11. Weave Collapse: The target is permanently destroyed, leaving behind a magical residue that can be harvested for spell components.
• 12. Cataclysm: The target explodes in a burst of magical energy, dealing 10d10 force damage to all creatures within 100 feet and destroying the target.