Can Sett's spend-buff ability be used at reaction speed?

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Three questions: Can Sett Brawler's spend buff ability be used during action/reaction timing? Does Monastery of Hirana's spend buff to draw work from base? When Showstopper moves a character onto a contested battlefield, does combat start immediately or can other units move first?

Anonyme · Accepted Answer

Sett's spend buff ability needs action or reaction tags to be used during a chain; it has neither, so base/slow speed only on your turn. Monastery can spend buff on any character you control. Showstopper does not immediately start combat — only standard moves move multiple units together unless a spell or ability says otherwise.

Can Sett's spend-buff ability be used at reaction speed?

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