Why Buff Leona?
I'm not saying Leona is good right now because AS LONG AS
ARDENT CENSER
IS IN THE GAME...Leona will pretty much be trash in comparison to Janna, Sona, Lulu, Soraka, etc. I'm just saying that they needed to somehow change Ardent Censer as opposed to buffing Leona.(Or at least do that first and then see if Leona STILL needs a buff).
EDIT: Honestly pretty much the same situation as Ezreal(the difference though is that they are releasing a skin for him)