Booming Blade

Booming Blade is a melee Evocation Cantrip that was added to Baldur’s Gate with Patch 8. It allows the spellcaster to make a melee weapon attack that deals extra Thunder damage if the target moves during the next turn. A great way to use Booming Blade is to force the target to move after using the spell.

Spell description: Strike with your weapon, afflicting your foe with a resonance that hurts them for 1d8⁠Thunder⁠ when they move.

Spell properties

• Damage: 1d8 Thunder + Normal weapon damage
• Damage type: Thunder
• Range: Weapon range
• Duration: 1 turn
• Attack type: Attack roll
• Conditions applied: Booming Blade
• Cost: Action
• Recharge: Per action

Spell upcasting

• At character level 5, damage increases to 3-24 (1d8 Thunder + 2d8 Thunder when the target moves).
• At character level 11, damage increases to 5-40 (2d8 Thunder + 3d8 Thunder when the target moves).

How to obtain Booming Blade

• Sorcerer, Warlock, Wizard at Class level 1
• Arcane Trickster (Rogue) and Eldritch Knight (Fighter) at Class level 3
• High Elf and High Half Elf at Character level 1
• Granted by features: Magic Initiate: Sorcerer, Magic Initiate: Warlock, Magic Initiate: Wizard

Notes

• Unlike other Cantrips in Baldur’s Gate 3, Booming Blade receives its final upgrade at Character level 11 instead of 10.
• The spell can be cast while you are Silenced.

Booming Blade

Evocation Cantrip

Damage: 1-8

1d8 Thunder

Strike with your weapon, afflicting your foe with a resonance that hurts them for 1d8 Thunder damage when they move.

Range: Melee Duration: 1 turn

Action

Condition: BOOMING BLADE

• (Affected entity will take 1d8 Thunder damage when it moves. Duration: 1 turn).