Hi there, the suggestion are listed as follow,
1. I don't think 450 mythology tomestones per week is enough for player because the cheapest gear will cost 375. So I recommend 600 per week.
2. The cost of relic weapon upgrade is far too high.
With 825 mythology tomestones, a gear of clothes or trousers will be exchanged.I think the cost is worthy. But to get a relic weapon, player will slay many monsters, confront numbers of bosses , get through some dungeons and survive in three trials. when all above are done, 900 philosophy tomestones are need to get the lvl.80 relic weapon.A relic weapon zenith is only 10 item lvl. higher than that but needs 900 mythology tomestones. In my view, the cost does not match the reward. So I think 300 mythology tomestones would fits the reward better.