Mono-White Humans goes wide and fast with Thalia's Lieutenant, Adeline, Resplendent Cathar, and Dauntless Bodyguard, so extra Thoughtseize taken on the play helps strip a key piece like Adeline before it snowballs tokens. Dark Betrayal is mostly dead since their creatures are white, not black, so it has very limited targets here — consider it a weak inclusion only if no better options exist; Witherbloom Charm's removal mode is a better fit since it can hit any nonland permanent with mana value 2 or less like Dauntless Bodyguard, Kytheon, or Zack Fair regardless of color. Lively Dirge is too slow against their aggressive curve, so trim for proactive disruption and keep our sacrifice engine racing against their go-wide plan.