Clash is still somewhat viable in Tier 2 due to the minimal number of removal cards, but in ranked matches, decks consist of at least half removal cards of all kinds, so they only use Weight (a good ward and overall good unit for aggro), Reno (a beneficial evolve, I once won a match thanks to it triggering), and rarely, the flood-like behemoth (AoE).
Today, I was matched against a Rogue in ranked, and what happened to him? He lost to the Wardrobe Keeper's bite. All sorts of Dryads and other units are easily defeated by any 1-2 power point spell. Even Weight gets taken out, and Reno is the primary target for removal cards. When the behemoth comes out, without an evolve, it's a dead card. The Elven Dwarf is a meme unit, at best it does something in Tier 2, but it has a powerful ability; Fangblade with something similar is infinite value, but that's because Fangblade rushes.
Fangblade with something similar - infinite value
XD