The first artifact, instant, or sorcery your opponent casts each turn is automatically countered, meaning they essentially need to spend mana and sacrifice other spells just to cast key cards 14 Talrand, Sky Summoner If there's something that Commander players enjoy, it's cards that reward them for doing things that are already part of their strategy
Liliana Dreadhorde General can also be a great source of card advantage while also providing a game-ending ultimate ability
So long as The Ur-Dragon is in either one of these zones, your other Dragon spells cost one less generic mana to cast
But it wasn't even close to becoming the Vintage powerhouse it would turn into once the dredge mechanic was printed in Ravnica: City of Guilds
Card Set(s) Included in FILM RED Promotion Card Set CARD VIEW P-017 | P | CHARACTER Trafalgar Law Attribute Slash Block icon 1 Type FILM/Supernovas/Heart Pirates Effect [On Play] Give up to 1 of your opponent's Characters 2000 power during this turn
Black Mage also provides an alternative way to apply pressure by casting cheap interaction, which is something most Commander decks want to be doing these days anyway