Well done... still some work and you will be positive
You understand me wrong, I was not talking of mainboarding them but you could remove the 2 grind // dust from your sideboard for 2 more lost legacy. This will not weaken you deck in your good matchups but it sill strenghten him in your bad ones.
BY the way, I'm curious to know about vraska(planeswalker). Did he win you some game ?
Ah; now I understand what you meant. 2 more
lost legacy in sideboard would be helpful against many decks. In my deck, the 3 mana slot is very crowded.
Nest of scarabs is the engine and I almost always would rather put that down turn 3 rather than a
lost legacy -
obelisk spider turn 3 is also good for blocking thopters and getting the life gain/drain process started.
Grind // dust is a sneakily good card. The grind half takes out smaller creatures that Ramunap and pirates use, and can mark a larger creature for
exile with the dust half. This can be very useful against gods and embalm/eternalize.
I see your points and they are good points in general. The decks I face at my local game store (LGS) tell me exiling creatures from battlefield is more useful than
lost legacy - for the time being.
Vraska is very good in a midrange deck. I can get her out as early as turn 4. I could use more flyers or reach to protect her, but all her abilities fit what I'm doing. Menace pirates help swarm, she is a removal spell with a mini-ramp from treasure, and her ultimate is great when you have 10 or 12 insects swinging in against opponent. I used to have Chandra in this slot, and vraska is by far the better choice for this deck, even at an additional 2 mana.