Tutors, win lines, and deck fit
Mono Black Zombies The best MTG Arena Historic deck Much like the Cranberries classic song, Zombies are, in fact, in your head
accountant with flair
This MTG Doctor Who card is great for dinosaur decks, but it also performs brilliantly in the Suspend precon it was printed in, and would do just fine in pretty much any tokens deck

Here's the list: Unlimited Tropical Island (PL) Tundra (PL) Revised Badlands (PL, LP, GD, EX, NM) Bayou (PL, LP, EX, NM) Plateau (PL, LP, GD) Savannah (PL) Scrubland (LP, GD) Taiga (PL, GD) Tropical Island (PL, LP, GD, EX) Tundra (PL, LP, GD, EX) Underground Sea (PL, GD, EX, NM) Volcanic Island (PO, PL, LP, GD) Foreign Black Bordered - German Badlands (PL) Foreign Black Bordered - French Badlands (LP) Bayou (PL, GD) Plateau (PO, PL, GD, EX) Savannah (LP) Scrubland (PL, GD) Taiga (PL, LP) Tropical Island (PO, LP) Underground Sea (GD) Foreign White Bordered - German Badlands (LP, GD, EX) Bayou (GD, EX) Plateau (PL, LP, GD) Savannah (LP, GD, EX, NM) Scrubland (GD, EX) Taiga (GD) Tropical Island (PL, GD, EX) Tundra (LP, NM) Volcanic Island (PO, LP, GD, EX, NM) Foreign White Bordered - French Bayou (LP) Savannah (PL, LP) Scrubland (PL) Badlands (GD) Taiga (LP, GD, EX) Tropical Island (LP, EX) Volcanic Island (EX) Collectors' Edition Bayou (GD) 30th Anniversary Edition From the 30th Anniversary Edition also comes a Will-o-the-Wisp (Version 2, NM)

How the Deck Works: Marrow-Gnawer gives rats Fear, which means that they cannot be blocked by non-black, non-artifact creatures