[quote=@Esterdi]
Ok but, with a starting life total of 20, how much would those cost?

Btw, Sarad might be too good, since the zombies he gets from his passive cause him to make new zombies when they themselves leave, so he basically gets something strictly better than a 1/1 indestructible whenever a dude dies. Maybe make the passive trigger only on nontoken creatures?
[/quote]

Thank you. I overlooked that, and might have abused it had I noticed it myself. 

My guess would be Alec's +1 would be +2. His -X would be -X. And his -8 would be -11.

Sarad would be similar but his +1 would be +2 and his -10 would be -14. Just balancing it out so that if you had an ability like Sorin, Lord of Innistrad's -6 you couldn't use it first turn and still have 1/2 your life.