Containment Priest is a flash 2/2 for two that can ambush attackers and add pressure, but it is a white creature with mana value 2, so Fatal Push and Snuff Out both kill it. Its exile effect only applies to nontoken creatures that enter without being cast, so it does nothing to cast spells or to anything involving delve. Faerie Macabre is a free way to exile up to two cards from graveyards. That strips fuel from Nethergoyf (both its size and its escape cost), shrinks Barrowgoyf if they bring it in, and removes the instants and sorceries Bilbo wants to recast from their graveyard. Anointed Peacekeeper is weaker here since their deck is cantrip/counter-dense rather than reliant on one namable card, and Witch Enchanter has few artifact/enchantment targets on their list. Keep Chalice of the Void in to shut off their one-drops and cantrips.