Thanks a lot for your thoughts.
1.
Vraska, Swarm’s Eminence - she was my first thought, too, to build around deathtouch. Then I was thinking about cards that I want to play on t4 - there were removal and
Questing Beast, but no Vraska.
2. This was really hard choice - to play
Foulmire Knight or once more removal, such as
Primal Might. I think, that you have pretty enough drawing abilities and deathtouch guys, but not so much removal without
Primal Might. So, the choice was to play removal.
3.
Blacklance Paragon is good, when you have enough knights.
Knight of the Ebon Legion is really strong, when you want to attack and decide whether to activate him or not at the end of the block step. Here you have many third drops, that you want to cast on the first main phase of the T3, and you want to play removal in the rest of time. So
Knight of the Ebon Legion will be the 1/2 creature for B, without abilities.
4.
Call of the Death-Dweller - I was thinking about this card or
Find // Finality against the
Casualties of War. The Casualties won this battle.
5. You don’t want to play weak first drops as fillers. You have lack of slots.
Graveyard strategy is interesting. But it is the different deck.