It's a very nice Defensive tier... Top boss again Memphis....
Tier 1: Exchange at least 500 Gold and get:
(1) Holy Water Vial
(1) Spirit Stones
(1) 5% Talisman
(1) Sky Blessing Raw Stone
(1) Warlord's Adamant Chest (Defensive)
Why is it only "(1) Sky Blessing Raw Stone" ?
As you need x2 and a polisher to make a gem stone.
As within the spirit of "making the game better" There are people new to the game that have never combined Raw stones, (or done any crafting) And giving new people the chance of discovering "crafting" by means of a tier, you could have given 1 more Raw stone and a polisher in the Tier 2.
This is just my opinion, Maybe in the future you could do a "NooB" crafting tier?
Keep up the outstanding work