Seal of Immunity

Kicker {p/w} (You may pay an additional {p/w} as you
cast this spell.)
Split second. (As long as this spell is on the stack,
players can't cast spells or activate abilities that aren't
mana abilities.)
Your next spell can't be countered. If this spell
was kicked, until the beginning of your next
end step spells you cast can't be countered.