Illaoi's Rune options seem very limited
http://na.leagueoflegends.com/en/featured/preseason-update/8400-8437?build=30000146
This seems to be the only really viable rune page on her, as she cant really reliably use much else.
She cant reliably use Press the Attack, as her spirits dont stack fervor, so i doubt this will.
She cant reliably proc Phase Rush unless her E counts as a stack towards it, Which i doubt it will considering E's dont give assists unless you damage them.
So shes left with the Resolve tree, as she cant use any other keystones. She doesnt have reliable CC, and she doesnt need to shield her team, so shes left with Grasp.
Shes not a tank and she builds damage so she can only use perseverance.
The next section is probably the only flexible part of her choices, as its all resistance based, although the healing ones are probably better.
Overgrowth is literally the only one illaoi can use the best.
Precision is just all, ok picks for illaoi, nothing really stands out other than the Tenacity.
The only great pick in Sorcery is gathering storm really. You MAYBE could put this as your secondary, but its risky.
Inspiration seems to be a lot of random things piled into a tree, nothing illaoi likes too much.
So we're left with Domination. She loves the two healing runes in there, As it gives her more survivability in her ult.
Overall, her rune choices are super limited, and its kind of worrying, considering a lot of other champion's rune choices will be flexible.
