Ignoring the magic templating stuff... It feels like a Rocket Launcher but it really isn't, it's a colourless Wall of Fire. Which means it's probably only slightly overcosted, even though it's usually pretty weak. Wasn't expecting to come to that conclusion. It's almost always worse than a Wall of Spears and yet.. just sometimes... it's a much better rattlesnake. And Living Wall was a venerated staple of some decks. And although I'd usually prefer the much cheaper Steel Wall, again, sometimes you want to be able to kill.

So, all in all, seems like a good card. It's quite a nasty "Dare you attack into me?" but only if you can keep the mana up. And it's vulnerable enough to not lead to a complete stall.

...I still wouldn't play it though.

How about if you factor in that creature destruction doesn't kill this, Vitenka? Would you think about it then?

I was assuming that was just funky strange templating, since lethal damage still kills it. If it can't take non-combat damage then, um. It's still an artifact and still not all that tough. I like it, I think it's a good card - but no, I don't think I'd use up a 4-drop slot with it.

Edit: Ok, I had to try it. But I can't find "May block an additional creature" except on other creatures. Maybe in a slow metalcraft deck that wants a blocker?

I was inspired to make this card by some comments Mark Rosewater talked about on his Tumblr today. Saying that walls aren't creatures, they're either enchantments or artifacts. So I set out to create just that.

Does 4 mana really sound high for a blocker that can't be targeted by direct damage or creature spells? The only way to get rid of this is a 4 power attacker or a destroy artifact effect.

I also templated the damage ability in such a way that it doesn't target the attacker, allowing it to get around hexproof and shroud. With a sufficient amount of open mana this could even kill an attacker that blunders into it before any damage can be dealt to this wall if you know how to play your combat timing.

True, it's firstiest strike. But unless you have a LOT of mana up, Wall of Spears still seems likely to be more widely useful. As I say - it's a good card. I just don't personally happen to like it enough to put in a deck; for four mana I usually want to be doing something other than delaying my opponents medium sized non-evasive creatures.

I don't know why this says "each" creature it's blocking. AFAICT, it can't be made able to block multiple creatures by Valor Made Real or any other such effect, as they all only target creatures.

Considering that this can't be saved by Shelter or Stave Off either, and I'd normally rather just have Wall of Denial. I suppose this can be an approximation to Wall of Denial outside those colours.

Flipping a couple of comments up - the "Each creature" letsa it hurt shroudy first-strike creatures.

While I agree with Vitenka, mostly, I would definitely drop this in a creatureless deck... especially one with a heavy artifact base. In fact, I could really use this in the creatureless EDH deck I'm building right now... I'm getting tired of all the Wrath of Gods ruining my fun.

Can it have P/T if it's not a creature, though? I thought only creatures can have power and toughness according to the rules of the game.

@Cymerdown Mark Rosewater has said repeatedly that Magic is a game that is all about breaking its own rules. I don't see how Wall of Guns is any different than an artifact that makes everyone skip their upkeep or an enchantment that lets you untap all of your creatures and take an additional combat step.