Thoughts on adding heirloom items similar to wow (I know comparing wow is taboo but hear me out)

Level a job, get tomestones to buy gear for other jobs (many already share with others) where the stats scale with level and add a perm xp bonus. To make it a ltitle less gimmicky you could make it so they don't reset levels for reuse and can be traded in for a fraction of tomestone price after max leveled. Otherwise it's just potd to powerlevel.