Ciaran aep Easnillien is a strength 3 Agile unit. You can place him in either the Close Combat or Ranged Combat row, so he is easy to fit into whatever row needs him. So when Biting Frost covers Close Combat or Impenetrable Fog covers Ranged Combat, the other row is still open.
There is no fixed seller for this one. It turns up as a random reward when you beat ordinary gwent players such as merchants, innkeeps and villagers, so keep challenging everyone you meet. It counts toward Collect ‘Em All.
