Vessel of Reconsideration

{u}: Counter target instant or sorcery spell you
control. Put a blue Vessel enchantment token
onto the battlefield with "Sacrifice this
permanent: Scry 1."
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"Oh, I see what you mean. Well, why don't we put a
pin in that and set it aside for a bit, and come back to
it in a little while... okay?"
- Ganleya, Peaceful Mediator