ideas for Focus tree

just some random ideas relating to some Focus skills
- increase skill from some interacting with the deck. eg stacking, making combos, swapping
(I think there are some elements already doing this)
-bring back deck size and something like a offensive affliction which affects the opponents deck size (such as reducing the number of choices that player has)
- some sort of 'training' mode designed to make training better (combine with ingame 'training dummy'/Master Trainers/ep2 other players)

that's mostly it.. I just find this aspect of the decks to be lacking in these sorts of things.
I don't like the resultant situations with normal ability use - such as a flurry of player use to try and make enough stacks/combos in attempt to do all the work 'manually'. This could be a good opportunity for new skills or passive deck type skills.
Ask the question - why should a average/poor user end up with too many cards on screen than that he knows what to do with? I think there should be different conclusions - such as with the deck-size limitations.

cheers