Wow, uber-unblockable goblin. Interesting how it'd be a lot worse if it stayed in combat, even though it'd get to deal more damage that way. Flavour seems a bit odd in red, although I'm not sure what colour would be better.

Red as a color doesn't like blocking and likes fast creatures (usually manifesting as haste). The flavor idea here is that it attacks so fast that nothing can block it (and it deals damage before everything else). I should probably fiddle with the name to make that more clear.

Kinda like the laccolith cycle from macques block, always did want to see something like that return.

Removing from combat feels kinda awkward though

I like the card. But I find it funny that it pretty much reads ": Blitzing Goblin deals damage equal to its power to target player."

Not really. Tap activated abilies are far more abuseable than attack triggered abilities. And since triggered abilities still use the stack its still susceptible to being stifled and as attacking is the trigger and the remove from combat comes after the damage on resolution its now open to whites removal effects that deal damage or exile attacking creatures

True enough. It is, however, just as capable of being stifled since the spell Stifle counters activated and triggered abilities (the word 'When' tells us that this ability is a triggered ability and goes on the stack). In fact, Stifle would be disasterous to this creature, since it would be subsequently blocked.

I did say still susceptible to being stifled :P But my point is its generally fairer than "T: Blitzing Goblin deals damage equal to its power to target player."

Although it doesn't target which may occassionally be relevant :O

Oops. My apologies for glossing over.