@ElementalDearWatson I have to say that even if building the initial deck is a small part of the game, fine tuning it still takes a certain amount of playing. Yes, time wise the majority of the time is spent playing the deck, but exactly how much skill is there in playing the deck? As Pineapple has stated, there are small nuances, but short of a very LARGE screw up or some luck, I don't think it really affects win-rate as much as bad deck construction.
It doesn't really take that long to learn how to play Intosis, I've never toyed with RoL/Hope and as in something like a SNbow is pretty much common sense. I mean, is a Newbie going to go spam his Sundials against Neptune early on? That's a major screw up which does drop the win rate, but how many Newbies would seriously play the deck like that? You can't really go wrong with a SNbow(Or even a Nova Rainbow) if you have about half a brain; don't play enough Nova's/SN's to get a Singularity, rush the opponent and draw out CC or PC with your less useful cards. I mean heck, when I play The Wrecking Ball it's a no brainer; the only thing that even has a CHANCE at stomping me is a Fire rush... Or maybe a heavy Aether control coupled with bad draws.
Actually PLAYING is consuming more time, but exactly how much skill went into playing it? As I said before, short of a large blunder the win-rate doesn't drop much for unskilled play. Sure, you can spend a few minutes making a fire rush, but is it really good if you randomly toss Fire cards in it? Some cards don't belong, and some cards have synergy with each-other that can be combined to make a deck more effective.
Isn't the trainer free? I've never used it, but it seems to be an open box that anyone can use to try out building decks. Sure, it takes time to build the decks, but once again... The most efficient grinders for rares don't really seem to require skill for Bronze, and if you have Rares you can grind higher ranks(Or maybe Silver with upped cards). I stomp Bronze consistently, but I can fail to win Rares due to luck of the spins. Just getting to the deck building part is taking me large amounts of time with no-skill grinding; why should this be the case? I'm not suggesting to make Rares more common; I'm merely saying that grinding as it is doesn't make much sense to me... It's long, it requires no skill, there's no guarantee of Rares. Other than time, luck and Upgrades(Which require more time), exactly what does grinding take? Compared to deck building, where you can create intricate synergies with cards and form strange strategies to throw opponents off guard while also countering their deck strategy... Well, deck building seems to require strategy and skill, unlike grinding.
It's a large part time-wise, but it's not really something that takes skill. It takes time to grind, and it should, but no amount of skill changes that grinding by large amounts with the existence of the forums. I don't think you're opposing the fact that it takes no skill, but the fact of the matter to me is that skill SHOULD shorten the time required to obtain items, but this is not the case. I mean, if I were to die in a game, I receive a penalty. Skilled play will help me avoid this death and continue further, obtaining more rewards. In Elements, it's like even if I have all the skill in the world, I'll be near-par with someone who took decks from the forum; we obtain near the same reward, but there's been virtually no skill involved in his playing. He's bypassed the skill required to avoid death(Which would be failure to build a good deck in Elements) while I have learned it the hard way; this doesn't seem fair at all because when we both come to grinding, neither of us has an advantage while I clearly have more skill.
Please note that I'm not saying I have more skill than anyone, I'm merely using a comparison. I'd rather not come off as someone with a rather large ego, and my apologies if I do with my arguments.