In short, if you happen to have a gameplan you've heavily committed to in your deck that happens to have a lot of overlap with a certain card type, then you might consider Possibility StormPossibility Storm
Does Loss of Life Count as Non-Combat Damage
Infiltration Lens, Rogue's Gloves, Mask of Memory, Avarice Amulet all are in here for same reasonKusari-Gama: This is our only psuedo Boardwipe in this deck.Banshee's Blade: This, Bloodforged Battle-Axe, Cranial Plating, are in here cause they ramp up damage
Midrange has the removal needed to clear a path for the Garrison which is what it really needs to perform well
One use per turn is the most efficient way to obtain a high level of card quality and so the fact that you have to pay no mana to use Library is an advantage overall
One of the first cards I added to the deck was Storm Herd, which is normally way out of reach for the typical Boros deck but very castable here