Master_J, thanks for the response man! Smothering Tithe is a absolute powerhouse, i now even run it in decks where i have acces to green as well, cause it goes out of hand quite fast.

Thanks for the tip on Arguel's Blood Fast  ^Flip, I'm a bit in doubt between that card and Erebos, God of the Dead . Since the denying of lifegain I value. Often he is a indestructible creature that can swing in for 5. All that for just 2 mana more. That being said, the copy effect is quite the reason not to run him. I might look into it, till now I havent really encountered someone copying Erebos.

Pontiff of Blight helps quite a lot. Lately ive been shifting my deck a bit more towards Extort again. I always underestimated the mechanic a bit, but it just gives you sooooo muuuuuch triggers. And since not all the extort creatures are worth playing I decided to run Pontiff again. Yes he is mana heavy, but mana I never really found to be a problem with playing cards like Land Tax , Smothering Tithe and being able to tutor to those cards. But if you run enough creatures pontiff is really really nice, especially if you play cheap spells, wich can trigger karlov 2-3 times. Think you should just playtest him a bit.

I now see that my list is quite outdated, ill update it straight away so you can check the last changes i've made. Ill also put it in the log.