1)
Why does it say "[v'Chamas ha'Melech] Shachachah"?
1.
Torah Temimah citing Megilah 16a #1: The extra 'Chaf' alludes to two angers, of Hashem
1
and of Achashverosh.
2.
Torah Temimah citing Megilah 16a #2: This alludes to two angers, over Vashti and over Esther.