Underground Sea (PL) leads the pack as the quintessential blue-black staple, followed by Volcanic Island (PL) for the Izzet loyalists
While often it'll get played in dedicated lifegain/lifedrain strategies, I think this is a solid inclusion in Vampires or Knights just as a way to get incremental life, since this will often gain you quite a bit of life just from sitting on board and swinging with the team
The mana value is what holds it back, which will be the case for all of these, but at least one of these Gearhulks feels like it should be breakable
You can use this to dodge board wipes, attacks, Paddington hard stares and probably your tax bill too
Powering The Deck Down For once, we didn't intentionally add any infinite combos (though it was very tempting to add a Herd Baloth to go infinite with Cathars' Crusade)
Each card you mill increases your options of lands to play