liliana cards mtg of the Dark Realms (Borderless) [Secret Lair Drop Series] Lightly Played Your deck of cards represents all the weapons in your arsenal Liliana, the Necromancer [Core Set

My experience has been that it already shows up in more Cubes than can reasonably bear it, and its a little weird to me that its as popular as it is outside powered Cubes where the threshold for nonsense is very high

Helm of Possession is one that any deck can run, and similarly to Vedalken Shackles, offers a repeatable sacrifice outlet to steal things with

Two examples of this are Welcome to the Fold and Avacyn's Judgment

Most cards that cycle for one mana are good even with limp effects and scry is far from a limp effect

FromTheShire: I think the theory is that the mayhem cost DOES make it cheaper, because you're also trying to flip Norman Osborn into Green Goblin and getting that sweet reduction

Conclusion I think that most Commander decks will benefit from playing a board wipe or two, because you simply cant guarantee that the natural variance of the format will always be in your favor