While you do have to sacrifice an artifact as part of the casting cost, being able to place any artifact in your deck onto the battlefield for its mana value + 2 blue mana is incredibly strong, and can be useful during almost any part of a game
[D] Hangry Tackle 20+ If you have no cards in your hand, this attack does 90 more damage
They still show up in: Superfriends decks that want more planeswalker density Themed Commander builds where style points matter Cube , where nostalgia and balance are friends again Casual story deck piles , where Garruk can finally be the jock he always wanted to be If youre buying them for play value alone, thats fine
The cards ability will come into play sometimes, but its main value comes from that sweet +2 to devotion count
Therein lies the difference, between a person who knows how to scale back his playing to a friendlier level, and people who wouldnt know what a real friendly game was if it bit them in an uncomfortable bodily region
Nibelheim Aflame is vulnerable to bounce and instant speed removal, but definitely worth the risk