Rumbling with Kereska's Thunder (Condition)

Rumbling with Kereska's Thunder

Affected entity has Resistance to Thunder damage. Its thunder spells deal additional Thunder damage equal to its Proficiency Bonus. When it deals spell damage, it inflicts 1 turn of Reverberation upon the target. While attuned to Kereska's thunder it can cast Shatter and Destructive Wave.

Sources of Rumbling with Kereska's Thunder

•  Bone-shaking Thunder