i haven’t crafted on it at all yet. i think you’re right about the tier on the channeled damage, but i don’t have the game open currently to check. i was kind of about the stun chance but i’ve found that ele nova is pretty good at stunning while leveling so that’s actually a pretty good stat too.
i hit the 300-mana mark last night and have a couple of idols with double increased fire damage when over 300 mana. the staff should free up some affix slots on other gear when i can equip it. i’m currently trying to build around ward for defense but i’m also interested in using mana… there doesn’t seem to be a ton of options for that though, so far i’ve only seen it as an affix on body armors and one branch in flame ward’s tree. i think i need to review some builds and see how people are building around ward and mana because i haven’t really done that before.