you can trigger heal + buff removal twice each round, but kushina's mystery cannot be removed until the end of the round so it cannot be cleared by debuff action.

there are 3 things that happen when kushina uses her mystery, suppress immunity, paralysis and repulse to the selected unit, if she chases that adds immobile, so suppress immunity + 2 debuffs, paralysis and immobile. her passive will clear one debuff which priority will clear immobile and will be left with paralysis. Or rather since she's immobilized she wont be able to clear any debuff