Quote from SeaThief »Another fun card is Withering Boon. It's a black Essence Scatter that costs you 3 life.
Quote from SnowBunny »Oh!blind obedience is a fun card as well. Cheap, painfully slows your opponents and extort triggers are fun.
Quote from Carthage »
Check this out:
http://edhrec.com/commander/Karlov of the Ghost Council/
Quote from Carthage »You are missing righteous cause
Quote from Boys to Men »Personally I've seen really cheap cards power up Karlov just as good as some of the staples you listed. Sun droplet and pristine talisman are a couple the surprised me recently.
look to the -right- of that menu, We added signout button to the right of it 2 Days/ 1 Day ago to fix that issue:)