I can't see why we need another format, that is also messing with existing formats. This bombardment with new cards (and lame digitalonly mechanics) is becoming more and more tedious.
Alchemy is just a slap in the face of every enfranchised player, as it implies that you are going to care even less about quality carddesigns.
That leads to a situation where if Standard is in a good place,
Alchemy will only set itself apart from standard by the new (*******) cards you shoved into it and if standard is in a bad place and needs to be changed you will do that by changing a new phantasie format instead.

Just slow down a little.. give us a break and start putting more effort in less product again. MTG is becoming the cardgame-equivalent of fastfoodrestaurants. Tasty stuff, no nutrition.