Counterspell

Counterspell is a level 3 abjuration spell. This spell allows spellcasters to interrupt another caster's spellcasting, causing it to fail and have no effect.

Description

Try to stop a spell being cast.

If it is higher level than the spell slot you used to Counterspell, you must make a check using your spellcasting ability^{[See Notes]} to prevent it. The check's difficulty is equal to 10 plus the level of the spell you are trying to counter.

Properties

Cost

 Reaction +  Level 3 Spell Slot

At higher levels

Counterspell can be upcasted to counter spells of higher levels without requiring a check.

How to learn

Classes:

• Class Level 5: Sorcerer, Warlock, and Wizard

• Class Level 6: College of Lore (via Magical Secrets)

• Class Level 10: Bard (via Magical Secrets)

Granted by the following items:

• Staff of Interruption ( Recharge: Long rest)

Notes

• When attempting to Counterspell a spell of a higher level, the Counterspell caster's INT modifier is used instead of their spellcasting ability modifier.
•  Silence does not affect Counterspell.
• Even a failed Counterspell will feed the Abjuration School Wizard's  Arcane Ward.
• When a scroll is successfully counterspelled the scroll is NOT consumed.
• Cantrips can also be counterspelled.
• The incantation for Counterspell is Impero Tibi, Latin for "I command you".

Bugs

• Arcane Ward will only ever be fed 3 charges, regardless of spell Level used, due to how an additional hidden Counterspell is cast based on success/failure

External Links

• Counterspell on the Forgotten Realms Wiki