Linvala, Keeper of Silence

Linvala’s strength is her flexibility: she turns off a lot of relevant creature abilities and hoses a lot of decks when she comes out, especially the sacrifice-outlet combo decks like Melira or Anafenza-based decks, and she slows down a lot of decks that like creature abilities, like Jund. All for four mana, and you even get a 3/4 flier to boot. She’s good at slowing down opponents while bashing faces in.

Four mana is awkward, though, as Linvala might have the problem of coming down after creatures are establishing themselves on board. She’s good for controlling decks and ones that rely on going deep into games, but she's a bit slow in a lot of match-ups…and her only protection is her 4 toughness, which isn't as awesome as it seems.

Constructed: 4
Casual: 4.5
Limited: 4.5
Multiplayer: 4
Commander: 4.25