Goryo's Vengeance wants to flashback discard a fatty like Griselbrand or Atraxa, Grand Unifier into the graveyard and reanimate it, but we have no dedicated graveyard hate in the sideboard to interact with that plan directly. Vexing Bauble can occasionally punish a free spell like an evoked Solitude, though it's a narrow upside include rather than a real answer. This matchup mostly comes down to who assembles their engine first, so keep the plan largely intact and lean on our own proactive speed rather than trying to fight their graveyard plan piecemeal.