This is the basis of my Yeti BG; it's like this because I decided to put all that's absolutely necessary for the BG to work - you'll certainly put Gale, Icestorm and so on, but I'll leave it to your own discretion - and I don't recommend changing anything there, those runes got their place after a lot of testing, and were compared with other runes that aren't in it( yes I even tried Avalancher). My BG has 15 champions. One may ask "But uncle Loosh only 15"? "Made to die yetis are not", my answer would be. They have a LOT of healing, cleanse, powerful debuffs... And Abominable of course. My suggestion for last champion(s) would be either 2x Wailing Yeti or 1 Wailing Yeti and 1 Yeti Sorcerer. This BG already has a lot of range, but Sorcerer is a very handy champion with Snowstrike so I'll leave it to you. One might ask: "WTFirk uncle Loosh u noob y no Icelord and cub"? Because yetis have stronger options for melee - trust me, Icelord isn't as reliable as he seems - and they're very cheap now. Those who have seen me playing( even when I make tons of mistakes) will surely see how powerful Yeti Ancient is when(if) correctly used. This BG relies a bit too strongly on debuffs, so intensive cleansing might be annoying( that's why I included Swap, Valdac don't hurt me no more) as you need the fear to stay there should you decide to dive in for a kill. I haven't explained the BG thoroughly because that would end up in a huge wall of text, but feel free to ask anything.