Trash Truck (But Buffer)

Alright, here's the more muscular version of Trash Truck:

2 Sheoldred, the Apocalypse

3 Magus of the Wheel
2 Tourach, Dread Cantor
3 Glint-Horn Buccaneer
4 Orcish Bowmasters
2 Dauthi Voidwalker

2 Waste Not

3 Dream Salvage
4 Sudden Edict
2 Sheoldred's Edict

4 Mountain
4 Swamp
2 Bojuka Bog
4 Bloodstained Mire
4 Blood Crypt
4 Badlands

3 Liliana of the Veil

4 Reforge the Soul
4 Burning Inquiry

 15 Sideboard
SB: 3 Blood Moon
SB: 4 Leyline of the Void

SB: 4 Pyroblast

SB: 4 Meltdown

I am still unsure about the Sideboard: Pyroblast vs Defense Grid is the dilemma. Pyroblast can interact on the stack and remove troublesome permanents but my goldfishing with Trash Truck has suggested that the mana is tight. Would it just be better to try and insulate my turns? 

Somewhere along the line, I realized that Bojuka Bog and Daluthi Voidwalker would be great proactive answers to filling someone's graveyard and they were maindeckable, so here we are. This could mean that I'm going too hard on Leyline of the Void in the Sideboard, and that might mean there's more room for something else? Most likely Plague Engineer.