It lets creatures take down much stronger opponents in combat and can get in a good chunk of surprise damage when your opponent is at a low life total
As another example, if my opening hand has a one-drop, a two-drop, a three-drop and four different four-drops, then I will usually bottom the worst three four-drops in the hope of drawing into a powerful five or six-drop, while keeping the cards that will ensure a perfect 1-2-3-4 curve-out
Once you get this into play, Virtue of Loyalty is an absolute house in Limited
Land - Mountain Forest Color tag templates(None) Temple of Abandon This land enters tapped
Imagine a battalion mass pump
Finally, Deathmark will help Black decks stave off any Green stompy or White aggressive decks, but for now it'll stay on the sidelines