<!-- Google tag (gtag.js) --> <script async src="https://www.googletagmanager.com/gtag/js?id=G-G26W6267FY"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-G26W6267FY'); </script> **[Hub](Hub.md) / [[Prism]] / [[Keywords]]** # Reaction A reaction is an action usable outside of a character's turn in initiative. Notable defensive reactions are [Parry](Parry.md), [Block](Block.md), [Withstand](Withstand.md), and [Avoid](Avoid.md). [Attack of Opportunity](Attack%20of%20Opportunity.md) is an offensive reaction triggered by certain class features.