WUBG is a graveyard-recursion deck relying on Bloodghast, Narcomoeba, and Prized Amalgam coming back from the graveyard, plus Creeping Chill damage. Fatal Push cheaply answers their small recursive creatures (Bloodghast, Narcomoeba, Exhibition Tidecaller) before they loop back from the graveyard repeatedly. Thoughtseize strips key enablers like Breaking // Entering or Witherbloom Command before they can set up their graveyard engine. Torch the Tower and extra Shrapnel Blast are less efficient here since their creatures are small and cheap to replay anyway, so we favor cheaper, more flexible interaction and disruption instead.