As long as you have a Mountain (which you should), all creatures you control have Haste, letting you quickly put out damage from creatures played from your hand
In fact, it opens up to 180 degrees allowing for much easier and safer access to your cards, reducing the risk of marking or other damage
If Infesting Radroach is milled at the same time an opponent mills a nonland card (for example, because of the activated ability of Raul, Trouble Shooter), Infesting Radroach's ability will trigger
Since it requires a dedicated Grixis manabase, I cant imagine it becoming a multi-deck staple like Karn, Scion of Urza or even Chandra, Torch of Defiance
Final Fantasy VII As an equipment matters deck, white-red is well-known for that archetype in Magic and showcases this groups iconic weaponry and battle prowess
Treasure has some nice additional benefits in Black, since there are lets of payoffs for artifacts going to the graveyard