*reads note on druid class*
Challenge accepted.
Anyway, I really like your druid class and the unique idea of seed bags as their weapon. I usually always go with summoner because tiki and all that, but this class is way more plant related, and by extension, the clearly superior choice for me (even though it's still a work in progress, whatever).
That being said, I do have some suggestions about the already existing druid stuff, like the golem watering can and power cell wristband. Right now, since the druid class is still very unfinished, it just makes sense that these accessories together will boost your damage by 45%, and crit chance by like 20%. However, after this class is more refined, those items should probably have that damage boost reduced greatly.
Also, I have no idea how modding in terraria works, but I think it would be cool the spirit wyvern weapon would actually spawn an actual spirit wyvern akin to the stardust dragon summon (but far, far weaker and slower, of course, and it would disappear after like a few seconds). That way, it would be more like a temporal summon than a simple magic weapon. Thats just a suggestion though, I have no idea whether this is possible.
Love the mod either way, though!