From its passive ability that makes it an insect creature while not on the battlefield, to its literal -5 bomb which deals damage based on the number of cards in your graveyard
He closes your lands down and benefits from them himself
This excellent card-drawing artifact is one of the cheapest ways to turn a 1/1 body into two cards, and once your tokens are slightly bigger, you can turn them into more efficient threats
With good all-around stats and the Detective class, hes versatile enough to be used for questing, but also draws when he banishes in a challenge
First, the champion, playing Mono-Black Necro Control: Creatures (7) Lands (23) Spells (30) 4 Nevinyrral's Disk 1 Hymn to Tourach 4 Necropotence 1 Ivory Tower 4 Dark Ritual 4 Drain Life 3 Stupor 2 Mind Warp 3 Contagion 1 Serrated Arrows 2 Demonic Consultation 1 Zuran Orb Sideboard Then, in third place, representing the aggro decks of the format, Brian Hackers Bad Moon Necro: Creatures (19) Lands (21) Spells (20) And then finally carrying on the fine tradition of B/r Necro-decks, Chris Pikula, who actually increased the red presence in the deck with Incinerates and multiple maindeck Shatters (Winter Orb, Howling Mine, Serrated Arrows, even Black Vise, Ivory Tower, and Zuran Orb were worthy targets)
Bygone Marvels is cool I suppose, but the decks not dying for a Regrowth effect, nor is explore that good at putting permanents in the graveyard for descend 8 to be consistently online