I like the idea of Jonah, though you can't technically convert cards in deck as they would immediately reset to face value. Also it doesn't specify what the characters are converted to. Heroes? Other brigades? Chickens?
Regarding the characters that I assume are demons, I don't know that either really needs a keyword. Keywords are generally to save space for abilities used on multiples of cards (aside from unique, thematic keywords like the "Empty!" identifier on TGT that don't inherently require extra explanation). I think each character could just have the keyword's ability as their ability. I think Satan has too much going on, though. The deceit effect is interesting, but I think it's too much with the bottom-card-revealed-and-something-else rest of it. Lucifer is certainly interesting.
