3. We execute the Sorcerer during the day. - I wonder, how will you execute your own partner? And without your vote, the Undine and the Necromancer won't be able to do it together. So, Ellina, keep in mind - they will execute either you or the Necromancer.
4. Undine blocks the Necromancer (the block on the Sky will still work). You won't be able to block him for two days in a row - a small inconsistency №2.
I hope you understood my point.
And option №2 is just amazing.
Added 31 minutes ago
Night #1 (this one). The Necromancer is executed by vote. Undine blocks the Blood Mage. The Sorcerer and the Necromancer can't do anything to Undine because the Necromancer has Night Defense.
Day #2. Undine and both Inamoramentists vote against one of the Inamoramentists. The Sorcerer or the Necromancer is executed.
Night #2. The Sorcerer (or the Necromancer) restricts Undine or the Blood Mage by voting.
Day #3. Undine and an Inamoramentist execute the Blood Mage.
Night #3. Undine blocks an Inamoramentist. It's a draw.
Alternative option
Day #2. The Inamoramentists don't vote against their own. No one is executed.
Night #2. The Necromancer tries to kill the Blood Mage and dies.
Day #3. No one is executed.
Night #3. Undine blocks an Inamoramentist. The Blood Mage kills Undine, or the Inamoramentists, it doesn't matter anymore, and revives the Necromancer. Everything is clear from there.

