Uhh. This cardset is set on Ravnica. On Ravnica it makes perfect sense that a grouping would name itself after the Gruul and the Rakdos. And it'd make no sense at all for a Ravnican group to name itself after Jund, which is a (part of a) completely different plane.
"The actual names of the shards", to use your phrase, are plane-specific. It'd be just as wrong to have a Ravnican card called Jund Berserker as it would to have one called Llanowar Elves or Kessig Wolfir.
I can see where it would confuse the heck outta players though.
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Why did you use weird names like Grakdos and Simizzet?
You could just use the actual names of the shards in my opinion.
Uhh. This cardset is set on Ravnica. On Ravnica it makes perfect sense that a
grouping would name itself after the Gruul and the Rakdos. And it'd make no sense at all for a Ravnican 
group to name itself after Jund, which is a (part of a) completely different plane.
"The actual names of the shards", to use your phrase, are plane-specific. It'd be just as wrong to have a Ravnican card called Jund Berserker as it would to have one called Llanowar Elves or Kessig Wolfir.
I can see where it would confuse the heck outta players though.
Post your comments on Retaliation here!
If your comments are on a small number of specific cards, they may be better added to those cards. This is for comments on the set as a whole.