extra upkeep cards mtg Timesifter (Mirrodin) Do You Know All 6

YOU CAN NEVER DISCARD EVERYTHING In a vacuum, its not hard to see the theoretical justification for playing discard spells

Ensoul Artifact (Magic 2015), which depicts a giant pair of ensouled scissors rampaging across a marketplace: Too often, some self-described genius comes up with a "labor-saving device" that ends up creating far more work

If you can reduce the casting cost, sneak it onto the battlefield, or reanimate it, you should have a tidal wave of value coming from the top of your library through your graveyard

(Signed AP Edition /50)

On top of that, it also makes all spells your opponents cast cost one more to cast