Black removal spells pave the way for creatures like Gix, Yawgmoth Praetor, Phyrexian Fleshgorger, or Nethergoyf to get in
Since necroskitter says "when a creature with a -1/-1 goes to the graveyard, put it back in play under your control", the land is a creature that went to the graveyard
However, gaining access to the Monarch mechanic and both Black and Red cards positions her as a force to be reckoned with
Since it targets a player and not a permanent itself, you don't have complete control over which enchantment gets sacrificed, though you're obviously aiming for someone who only controls one enchantment anyway
I also highly recommend keeping the mana value of the deck as low as possible, to maximize the chances that we can actually cast the cards exiled with Inti since we only have access to them for a turn
Original Manifest usually gives less control, although older cards like Scroll of Fate and Whisperwood Elemental are still strong in the right deck