I am going to have to say thuggee, I love the little guy.
Low cost, range, army, killer effect and can group attack with other thuggees. SUPER.

I am going to say two-face...sure he may miss half the time, but when he hits that coin flip, it hurts!

LOCK UP!!!!!!!!
oh no an avalon. wait you got no characters.hahahaha.lock up sends them to your deck.or if you need a batman you discarded earlier, lock up and signal it to your hand. i think lock up is pretty good