oops, meant for this card to be in the last update, was surprised to find I missed it

Hopefully this is the last major iteration of the cube for some time. I have added a lot of changelings with this update. This is an attempt to smooth out the tribes, particularly Elementals. I have pulled Assassins, Goblins, Myr and Elves from the supported tribes so now there are Elementals, Birds/Soldiers, Werewolves, Vampires, Humans, Shapeshifters (Changelings) and Mercenaries (which has been re-introduced in this update by popular demand).

I added more mana fixing, there is now the snow duals, the check lands and a few changes to the single colored utility lands.

Pulling Myr is probably one of the most interesting parts of this update, as it left a giant hole in artifacts and I was looking forward to filling that hole with some powerful creatures that will hopefully pull their own weight.

I removed a lot of the morph stuff but missed a few things, that allowed me to take a larger look at the cube and try to define some more of the archetypes (elementals, enchantments) and remove the ones which aren't supported by s18 rotation (cycling, madness, metalcraft). I hope that this makes it more clear which themes are under-performing in the future. I'm also starting to get more familiar with the format as a whole and learning more of the wacky cards that are able to be played, i would like to make two themes more apparent in the next revision but I'm not quite there yet - Reanimator and UR spells.

removing the rest of the keyrunes, they aren't an even cycle in PD anymore and this will help with balancing the cube

Finally got the big update I was looking towards.
We've removed morph as a sub-theme in UG and replaced it with +1/+1 counters.
Added changelings to every color to try and evaluate them.
Added more birds to UW.
Added in some sorceries to W, they got removed in the format refresh for being too expensive.

This is playable (hopefully) but I'd like Multicolor to balance to 8 per each color pair, planning to tune that this week.

nevermind the man behind the curtain!