Eternatus, to name one, might have lost some friends due to the rotation but has found in Umbreon the perfect partner and is now a very dangerous deck Another thing Id like to point out is that Umbreon is a Single Strike Pokmon and, as such, can be easily powered up thanks to Houndoom from Battle Styles and deal a very solid amount of damage
The other two are Uro, Titan of Nature's Wrath and Tatyova, Benthic Druid
As you likely know, a lot goes into consideration as to what a Pokemon will be weak to when being ported, as a concept, from the video games (and the anime, manga, and so forth) to cardboard collectible format
[24] GameSpot referred to the game as "a faithful and amusing adaptation of the collectible card game" calling the gameplay "addictive", but found it to be overall less satisfying than the original Pokmon role-playing games, stating that its goal of 'collecting all 226 pieces of paper' just doesn't satisfy like 'catching 'em all' can and does." [5] Others, such as IGN called the game "a blast to play" and that it offered mostly the same experience as the tabletop version "without the clutter or cost", yet acknowledged that the video game adaptation could not fully replicate the original given the finite number of cards available