There's three different tiers of Essence poro icon bundles that come with one gemstone, and I've been wanting hextech kog'maw since it came out. and I've literally never had 10 gemstones. But i have 9 right now and a decent amount of blue essence, because I've owned all the champions for while. So i decided to clean out all my champion shards because i have a lot, and i saved two for each champion that i got multiples of in case i ever got their mastery levels
And 15 minutes later i discovered that i had 120k total blue essence in champion shards. i started at 35k.