MTG Salvation

Did Alara give us any groundbreaking new cards that are going to spawn new decks by themselves?

Ad Nauseum in non-standard formats.

All cards with Devour

In my opinion, no. For the past few set realeases new archetypes have been discussed but nothing much has came out of Alara. But only time will tell. I'm guessing when Conflux comes out Shards of Alara will actually show to be a pretty powerful expansion. But there are some good support cards, like Death Baron and Wooly Tochtar. And with Death Baron a good Zombie deck is possible, but maybe not competitive. And I think there will be some casual decks that use those creatures that tutor out those big ol' Mythic Guys, Hellkite Overlord is a very good card but probably costs too much.

An exalted deck should pop up, as well as an Esper deck revolving around Master of Etherium.

Salvage Titan bears watch.

A devour token deck with Mycoloth?

If anything's going to get a 5+ creature power deck going, it's Sacellum Godspeaker.

Quote from MajoraX

An exalted deck should pop up, as well as an Esper deck revolving around Master of Etherium.

Salvage Titan bears watch.

A devour token deck with Mycoloth?

If anything's going to get a 5+ creature power deck going, it's Sacellum Godspeaker.

I think the devour deck would also work for Hellion or Predator Dragon. Both are really good.

And exalted will definitely hit the tables.

And both of these decks will only get better with conflux, while LOR/SHA decks will get worse.

Quote from LogicX

Did Alara give us any groundbreaking new cards that are going to spawn new decks by themselves?

Stoic Angel and Steward of Valeron built this deck in my head when I saw them.

Still needs tweaks but I'm liking it so far.