I side with: no thanks me too...
Outside the danger to becoming a clone 1:1 of cards game like Magic or Yugi Oh (and facing their wrath) I want to show you another reason:
6 Shards of gratitude (+ 5 HP per turn each)
6 Shards of Divinity (+10 HP each)
6 Stone Skin (+50 HP max each)
6 Miracle (max life -1 each)
6 Holy Light (+ 10 hp each)
And if is this sound familiar is because there is a deck out of there, made in this way, with a game duration against pretty much endless, if you are lucky enough to have more cards than them.
Would you give them the chance to annoy you more and more, allowing to fish back this stuff?
No thanks, I'd rather would be happy to see an introdution in the limit on how many shards, between the 3 types, you are allowed to put into the deck, rather than see it expanded.
No hard feelings to who has putted it together, but man, it's boooooorinnnng!
Same apply for a lot of other cards but I think that this particular example make well clear why should not be made aside the already mentioned clone risk.