riptor player Craft Skills in Atlantica Online:

Ranks are: Apprentice (level 1-10), Artisan (level 11-20), Craftman (level 21-50), Expert (level 51-70), Master (level 71-90), Grandmaster (level 91+). You can teach inferior ranks from the Artisan status.
Experience gained while teaching depends on the level you train: 100 xp (lvl 1), 500 xp (lvl 2-10), 800 xp (lvl 11-20), 1,000 xp (lvl 21-50), 2,000 xp (lvl 31-40), 3,000 xp (lvl 41-50), 5,000 xp (lvl 51+).

Craft skills
Craft skill	Level	Rank
Auto-Craft	100	(None: Auto-craft is an expression, not a skill, its level raises with licenses)
Armor	70	Expert
Bow	100	Grandmaster
Crystal	66	Expert
Food	50	Craftman
Mana Stone	51	Expert
Medicine	67	Expert
Scroll	55	Expert
Shield	80	Master
Staff	52	Expert
Tool	65	Expert