Let's get to the surefire players
Ishgard, the Holy See Faith & Grief provides a strong burst of card advantage later in the game, either to recoup after a board wipe or make use of a bunch of self-mill
Your biggest problem will be defending Teval, who has no protection against removal, will suffer when cards are exiled, and who must constantly jump into the fray of battle
'First Strike', which allows a creature to deal damage before its opponent (and potentially kill the enemy creature before they deal their damage)
Heres how it enhances essential skills: a
Because opponents can always choose to pass Kharn back and forth between each other, its only correct to damage him if you can get that player to agree to pass it to you first