In fact, the Magic term "ramp" comes from the card Rampant Growth, which searches your library for a basic land and puts it into play tapped
Deny the Witch This four-cast instant costs three colors of mana but is very strong with the ability to counter any spell or activity and then force that person to lose some life
For Best of One, definitely no but that's because WotC seems to have no intention of making Bo1 a thing on paper, so even though you could technically play it on tabletop, for better or worse, I doubt we ever will
Liliana, the Last Hope gets her spot on the list by enabling the vaunted single-card gameplan, where you sabotage an opponents targeted sideboard hate or plans to shift gears in the matchup by bringing in in a card that you can sculpt an entire gameplan around resolving and winning with
If black control makes a comeback, Lilianas Shade could be a vital piece of the puzzle
Grixis decks try to clear the board and get rid of the opponents hand until they are in a top-deck situation, which is where Tibalt will likely shine the most
