Even though this deck is very expensive, many cards can be replaced. Sonya Shadowdancer is good with cards like Arfus, SI:7 Agent and Vilespine Slayer, but she isn’t necessary. Vallera the Hollow is good somehow, but in most matches you will not play this card (I her just because I like this card. But I would loose many matches without it) . Use Hench-Clan Thug instead. Lich King is also good.