Been having a lot of fun with glacial on my supports that normally dont run it, but its a very good rune. I do get Everfrost is 3400 and is a little pricy but once you get it youll feel its power. The rest of the build is what i usually might build before my game ends but it doesnt really matter too much as the main items in the name. Ive stolen dragons with this item and have done some safer setups with it as well that really tilt the enemy team. Always wondered why the Q feather falls off super hard and this is like another CC tool that eventually becomes a 14 or so second 6th ability in your kit that will make a difference between not immediatley engaging with the W and perhaps saving it for peel instead of engage with W and your R all the time. The build is a lot squishier but once you learn to use your Everfrost as a main tool before you engage or peel youll understand the hype. Hope you enjoy!