Misc trades:

Too many single-target removal, not enough board wipes, so:

 - Trading Nemesis Trap (4BB, exile one creature) for Ichor Explosion (5BB, sacrifice creature, all creatures get -X/-X).

 - Trading Grisly Ritual (5B, destroy one creature, create two blood tokens) for Necromantic Selection (4BBB, destroy all creatures, put one on my side of the field).

 - Trading Orchard Strider for Ayara, First of Locthwain to bring down curve and add some card draw.

Not enough ramp, so:

 - Traded Fierce Witchstalker for Leafkin Druid (bring the curve down)

 - Trading two basic lands for Fabled Passage, Evolving Wilds

Notes from playtesting:

 - Mana curve is way too heavy, and there's not enough ramp to really get going. Removed Gravewaker, added Sol Ring, Arcane Signet. 

 - Giant's Skewer is a nice idea, but since I'm not getting attacks in yet, it's not doing me much good. Cut it. 

 - Flaxen Intruder creature isn't great, sorcery is too expensive. Cut it. 

 - Dying to Serve is terrible, unless I can include a discard theme. Cut it. 

 - Moldervine Reclamation was excellent, great source of card draw and life. 

 - Cabal Coffers is good, but only if I can get basic lands out onto the field. Need to add some basic land ramp in green (Grow from the Ashes, Circuitous Route)

 - Fae Offering would be great if I can consistently cast two spells per turn, but I'm not quite there yet. Cut it. 

 - Definitely add in a bunch of lands that can tap for black or green, added 6 of those, cut 6 basics.