I've been playing with Emhyr since day 1 and I have like 60% win rate. I use Emhyr, Cahir and Vattier to reveal most/all of enemy's cards, and once I know what he has in store, I just "control the game". My Spotters and Vanhemar all heavily buffed thanks to card revealing. Rot tosser is great for making the enemy play the cards I want him to play. Vicovaro medic helps a lot with with Scoiatel and Skellige decks in later rounds, as I can steal a lot of power from them. Cantarella helps me get card advantage or a fast win in the first round and then there is Letho. Letho is amazing. He can:
- disable three units in a enemy's row(great against monsters, skellige and NK)
- help you with upcoming weather card(which I can usually see coming because they are revealed)
- help you with the gold dragon (all my strongest units can be played in one row)
- Letho + dimeritium bomb lets me kill three of enemy's units from one row if the enemy plays the gold dragon or uses a weather, you just gather the strenght of his units into letho and change him to silver
- and finally, letho + dimerituim bomb + traitor lets me bascially steal the strenght of three non-gold units from the enemy. I leave this one for the very end. By that time cards like gerald:igni and scorch have already used for my Spotters and Vanhemar and the enemy has played his strongest units.
I love my emhyr deck. Once you see the enemy's card there is just so much thinking and planning and manipulating your enemy that I cannot stop myself from playing. Maybe it's not the most powerful deck, but it's certainly the must fun for me.