Darkin item and Demons Bug

I just played TFT and as we know Darkin item gives mana and makes the wearer a demon,If u put this item on a demon champion It just fall of because he is already a demon ( ),But Still it gives the mana soo ..... i guess u already know where am going with this(each time i give the item,the champion gets extra mana for free), especially with ,She will keep spawning her spiders even after transforming.I used it my self and i managed to get the board full of spiders which dealt about 60 damage to the opponent after the fight was done. I love TFT ,And i abused this bug because if i don't, no one will even care about it,But when ppl start seeing this they will make pressure on u to fix it and make the game great again. I abused the bug for one game(only one game) because i love TFT to be perfect,enjoyable to play and free from any bug. sorry for everyone who felt unsatisfied about this and about what i have done. (sorry for bad English) #Make TFT Better