Leona and Diana are not related?
Seriously, i just read their full lores and there is no indication that they are sisters.
Why? This is not good. Now they are just plain boring rivals. If they were sisters, at least it gave us the sense of anticipation of a battle between the two. Would they fight to the death or would Diana be able to prove to Leona and (as Leona is the leader of the Solari) to the rest of the Solari?
"sigh"
EDIT:I never said they were sisters, i only said that it's just going to be another boring rivalry that will most likely not get a solution like every other "brink of war/revelation/destiny" lore out there for 5+ years as lore apart from BIlgewater has never advanced in League of Legends.
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and the rivalry between these 2 is already dangerously similar to that of Leona and Diana(both have a zealous woman in golden armor and a rebellious woman who uses dark related powers(diana is moonrelated which is in turn related to the night))
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(even though zed was adopted),the trope is already a bit overused.