Gruul Broodscale is a fast combo deck that wins by pairing Basking Broodscale with Blade of the Bloodchief and Glaring Fleshraker for lethal damage, often as early as turn three. Your primary disruption tools are Thoughtseize (hit the combo pieces proactively), Consign to Memory (which critically counters triggered abilities mid-combo, stopping the loop cold), Fatal Push (instant-speed answers to Broodscale and Fleshraker), and Ashiok, Dream Render (shutting off Ancient Stirrings and Malevolent Rumble while also incidentally hosing their graveyard). Vexing Bauble taxes your Force of Negation when cast off-curve, so sequence carefully and lean on Consign to Memory as your primary stack interaction. Land Surgical Extraction after removing any copy of Basking Broodscale, Glaring Fleshraker, or Blade of the Bloodchief to prevent reassembly. Post-board, watch for Grafdigger's Cage and Soulless Jailer targeting your Goryo's Vengeance; your remaining Prismatic Endings answer Cage, and Consign to Memory can counter it on the stack.