Adding an upgrade to fleefoot would require some balancing.
Since it upgrades into some other item, it means fleetfoot is a lot more worthwhile than before. The thing about T1/T2 items that don't upgrade further is that their strength is balanced from the fact that you are forced to keep a...
I'm definitely not the target group for this but I quite like this feature.
As you said it would be great for new players and I think it's a pretty good gateway to manual build picking and even build freestyling.
Good idea and I agree with @adeptusforgeceo here, the max duration on that is slightly ridiculouse to say the least. I'd personally lower it to around 8s in max duration.
To counter Mercurial Mag you can just make it so the damage threshold needs to be met within a single spirit damage instance...
I think it'd be cool if there was a sidegrade to Mystic Reverb, where any instance of spirit damage by an ability or item would replicate that same ability/item to nearby heroes with a delay (It would probably be OP but you can make it so it doesn't replicate debuffs)
I like this, this is a fun item and has some real application.
Love to see different interactions here with headshots and heavy melees, it allows for different uses with different builds.
The idea itself is interesting, but I think it's a tad bit complicated for its own good.
Your point with Bebop makes sense, but it could be tackled in another way personally with a bit of balance and such.
As for the item example you gave: I like the idea, there isn't much item counterplay you...
This item could work, I do like AoE dispel types but as a T3 this is a bit much and especially for 28s of cooldown it's way too good.
I think leaning more into silencing items would be a cool idea and you could keep this as a T3 if you had less potential targets + removed the normal buff removal.
I think this idea is a very band-aid fix to visual clutter. I would rather have things be done to the main game that would help with that rather than make some item or game setting that gets rid of that