extra turn cards mtg Timesifter | Mirrodin | Modern Art by Franz Vohwinkel Originally released December 7 extra turn cards mtg Time

I would actually argue that Armada Wurm is the more proactive of the two and that Centaur Healer is more of a sideboard card (though it depends substantially on the tenor of the metagame)

While it costs a hefty six mana to get online, once it is in play you get to add twice as much mana when you tap any permanent for mana

Note that the Collector's Edition versions of Warhammer 40,000 Commander decks include surge foil versions of cards shown here

One of the most important points to consider is how fun these decks are to play its the main reason to buy them in the first place

Basically, it can attack right away, doesnt tap when it does, can only be blocked by two or more creatures, and if it does get blocked, excess damage hits the enemy player