When You buy support item and charge it up with gold (500 and 1000) you will transform it into better version of it.
There are currently 4 items from this cattegory and to change items you would need to sell it for 160g and buy new one for 400g.
When you change the item the new one will transform to higher tier (depending on gold gathered)
In link every time I changed support item i got notification in chat that gold quest was complete
Im just not sure if this is bug, maybe it's intended mechanic.
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