Actually Mari’s shop doesn’t reflect market prices at all. AGS is loosing money on this heavily as I doubt anyone is buying the over priced stuff there.
As a reflection gold exchange drop fast is around 550 gold for 95 crystals becouse there is no use for crystals.
Some examples of bad prices.
Prices Mari vs market
150 destruction fragments for 60 crystals = 336 gold vs 15 gold on market
800 guardian fragments for 72 crystals = 403 gold vs 80 gold on marktet
300 destruction stones for 167 crystals = 935 gold vs 120 gold on market
400 guardian stones for 80 crystals = 448 gold vs 280 gold on market
300 destruction stones for 240 crystals = 1344 gold vs 690 gold on market]
800 guardian stones for 240 crystals = 1344 gold vs 1360 gold on market
Honor shards S for 10x 56 crystals = 313 gold vs 340 gold on market
So T3 is barely even mostly worse as well.
Shards, leapstones and some honing chance materials are mostly only good deals.
They should remove those stones and give us more shards and leapstones.
As it is now its huge trap for noobs who can’t check market.
Those are EUC prices.