unsealed spell book rune as secondary rune

unsealed spell book rune is not good enough to be a primary rune not even for supports .alternatives are far better ... it should be a secondary rune (maybe nerfed a bit ) and changing summoner spells in game is not that big of a deal every summoner has its own trick every one of them have their own trade off ... and with u guys creating a champion (zoe) that litterly does a shiet tone of damage and on top of that gets all the summoners plus items like hex and redemption before level 6 in laning phase .. giving other champions the ability to trade summoners as secondary rune is not a big deal

but if stays like this i think its an unusable primary rune compaired to others