Zone-wide dexterity and multitasking buff that doubled in the castle, leaving everyone speed-addled and manically chatty.
Imani explains Extreme Focus mid-firefight: everyone in the zone is given a buff to dexterity that also helps with multitasking, and its effectiveness doubled when she landed in The Castle. The side effect is that it makes people talk far faster than normal — 'It's like we've all been given a dose of speed' — and turns chatty people like Donut extra chatty.
The buff explains the chapter's strange tonal texture: Tipid delivering a manic lecture on Gondii worm biology under pulse fire, Splash Zone volunteering details about his goblin wife Snail Trail, and Donut interrogating him about it while simultaneously calling targets. Carl notices it does not seem to be affecting him and guesses his Mind Focus is responsible, though Imani checks and confirms the buff reads as active on him anyway, and asks him to copy his health screen and send it to her.
Zone buff granting dexterity and multitasking at the cost of speed-like manic chatter.