champion pool and runes for ranked

New player, thinking of starting ranked. I have seen several people talk about having a small pool of champions when starting ranked, and i wanted to know if you guys though that 5 supports (lulu, sona, morg, janna, leona) with the addition of maybe thresh, and 3 mids (annie, ahri, malz) was too much, or if that is a good amount. Also, i currently have 9 rune pages, with enough runes to "pass" right now, but i need a few more to really be optimal i think. Is it worth it since the rune system is going away soon? Thanks.
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