Negateremoval$0.54Very close to Countersquall as cheap instant-speed permission for noncreature spells, but without the life loss rider.
Drown in the Lochremoval$2.89A flexible Dimir interaction spell that can counter many noncreature spells in the late game, though it has an additional graveyard condition.
Sinister SabotageremovalBudget$0.13A straightforward UB counterspell at the same mana cost, with surveil added for card selection.
Void ShatterremovalBudget$0.14A clean counterspell that also exiles the spell, giving a similar control role with broader exile utility.
Didn't Say PleaseremovalBudget$0.30A three-mana counterspell with a life-loss rider, echoing Countersquall's punishing tempo plan.
Cast Downremoval$0.67Efficient black interaction from the same color identity, though it removes creatures rather than countering spells.
Insidious WillremovalBudget$0.30A flexible blue-black-ish control tool that can counter spells among other modes, serving a similar defensive role.
Summary DismissalremovalBudget$0.17An instant-speed counter that can exile spells and abilities outright, playing a similar stack-interaction role in control decks.