black card advantage mtg Skeletal Scrying [Conspiracy] Top 5 Budget Black Card

The face commander is Inspirit, Flagship Vessel, a spacecraft that puts counters on your other artifacts and, at full power, makes your artifact army nearly indestructible

Destroy all artifacts and creatures with converted mana cost equal to that number

Most Magic booster packs in general contain bulk cards, but bulk can be put to good use

Temporal Extortion is the most valuable with a regular printing being about $20, but Star of Extinction, Day of Judgment, and Toxic Deluge have all been reprinted fairly regularly

More likely that is overkill and something as simple as a pair of large Gaea's Mights can use a Swiftblade to singlehandedly end the game as early as the third turn

Cheap enchantments in this deck also tax the opponent, with Rhystic Study being an infamous example