Haha very funny! To be honest though, the counter to Glacial is the "Disarm" item, the "Silence" item, Attack Speed Slow Frozen Heart item, "Critical Hit" items, Kassiden, Heavy damage for yourself, and Zekes Attack Speed boost, with 1 or 2 rageblades for 1 or 2 champions. These are great counter items against Glacials, as they rely on mana, and being alive to cast their spell. Armor and health regen isn't as necessary as some think, as Red Buff can easily help counter health regen, especially since damage items outdo Health Regen all the time currently, but a Hextech Gunblade healing crafted once or twice can make a difference compared to other options. Also consider that Demon comp steals mana from enemy champs, which increases the chances of killing off Glacials before they freeze you enough. I like Hextech Gunblade as my healing, because it adds attack damage to craft it, and it heals based on your attack which helps shapeshifters a lot.
You also have to consider creating what you can with what you get from the RNG. Not to mention I find Shapeshifters to be the hardest and best champ comp in TFT right now. Gnar can destroy 4 champs solo if his build is a strong counter against the enemy. You can seem about to lose 1 v 4, and when that Gnar shapeshifts, he wipes the remains clean! Gnar definitely can use a nerf on his health gains from shapeshifting.
Although I can agree that Glacial's, Sorcery with Elemental's, and Assassins, can all be a pain, especially if they have more luck with RNG factors. Of the champ comps I just listed above, all the others are much harder to win with, but if you calculate everything including attack positions, you can beat the best where you probably weren't likely to otherwise. With this said, the champ comps listed above hardly require much skilled efforts as the others weaker, in order to win. So it's true they have high win rates because for others to win, they have to calculate more, and if you win from calculating, then you may have gotten lucky the other wasn't thinking as hard as you were haha!
Overall I can say that this game mode is very limited compared to the others created for League of Legends, since we have no control over the movements, and the cards do everything for us, their isn't much of a sports feel to it as the interactive Rift experience. However, I do look forward to the rest of the LoL roster becoming apart of TFT as it develops, and hopefully continues to be successful!
(Item and Effect List Link below)
https://rankedboost.com/league-of-legends/items-list/