You need a few ways to increase her stats, but this format has plenty, and she can hit really hard in a hurry even with just one counter
A character card is a card that can be played onto the board and has inherent stats, an offensive stat called Strength , a defensive stat called Willpower and a Lore value
Seven mana isnt something you can just put in your average deck and expect to happen though, but if your deck is slow or has some acceleration, Coliseum Behemoth should be fine to play
The Emerald cards give you plenty of indirect ways to mess up your opponent's plans, meaning that this is a slow-burn deck where every play counts if you want to win
Players will continue to take alternating turns, playing increasingly powerful cards as their inkwells grow, until a winner is decided
It has to be the best possible play when its the last card in your hand, letting you refresh and draw at least two new cards