Hello my name is Steffanbertelsen i play on EU NORDIC EAST im a 500elo player (at the moment)
I play supp or jungler and i wanna to make a Leona supp guide...

Let's talk about runes choice:-)
i go very much armor for Leona cuz she is a very very offensive supp if u ask me!
When u Leona u wanna have all that armor to tower dive with + your That makes u almost impossible to kill.
Rule nr1:with Leona don't start a team fight if your is on cd!
Rule nr2:always be sure to stun with !
Rule nr3:always make sure to hit a opponent champion with you !

instead of ? not bad i think i just more like flash
instead of ? Never it is bad! cuz i u are towerdiving lets say a she probably gonna use her W and that will make her impossible to kill if u didnt had to help your carry kill her fast! if u didnt had some of u would die at tower 1 for 1 not good!

Skill order is pretty simple just take 1'st and max!!! to be so tanky as possible! and take at lvl 6 11 and 16...-.-'

Why u will have before is when u starting a team fight u wanna make sure u get away!
Other items to consider is instead of maybe go or
After buy a or

Keep up harrasment at early until late and support your carry!