I just go by market value man, based on the trades I see being made and most of my time on MP is spent stalking trades
. Values are are not made by stats alone, but how people perceive those stats as well as rarity and the aesthetics of a card.
Orochi has good stats, ugly, common skill, and rarity is because people used it as fusion food or the people who have it dropped off the map. I don't think that qualifies for a high tier spot. Plus I have never seen it traded for Hydra, FCD, ZD, or new the new high tier BC. To be a high tier it has to be sold for one at least. If someone traded their BC for Orochi, wouldn't you say they got ripped off?
BCG, great stats, but in the last few days it has dropped below FCD and BC. That means that FCD and BC owners now will not accept a direct trade for BCG. BC has taken BCG's spot. Dont believe me? Ask anyone with a BC if they'll accept a BCG for BC trade. In fact, a person with Orochi declined a direct BCG trade, and after 30 extra BCGs come out, it'll probably sell directly for Mikhail. BCG is my favorite monster, and although I don't like the fact that FCD and BC is higher, it is what it is.
I don't see Azure being traded for Mikhail, the standard of the mid-high, ever. And its max stats are mediocre at best at 5380 atk, that's not a lot better than Darkslime.
I meant to say BCC has bad stats and it used to be low tier, back in the day we could get one for rares, but I guess it could be in mid-high now. I agree
I offered a Mikhail for Harlequin and got turned down, it has good stats and a deadly skill if paired with KoD, that just means the rich people can only afford it. I only know of 10 people with it, which is pretty rare
Stats aren't everything, after all this isn't a stat collecting game, Aquila doesn't have great stats(better than Azure though), but I don't see anyone accepting anything less than a mid high for it. Remember this is values we're talking about. Cairina is possibly the most good looking card out there and there's basically none left, plus its the only memory of Teri we have left. If you'd like to know what one sold for a month ago, ask Avayi.
I think your list of SR tiers are made by your own perception of where each SR should fall. You have to ask the specific SR owner how much they value their SR and average it to determine the market value, which is what the price guide needs.
Hope I clarified