Lets be real, balancing one card is going to be tricky, two almost impossible while still playing the game, three, forget about it
This snowballing effect is clearly what Wizards is trying to prevent with the cards nerf
Much like the other two synergy-driven decks, I actually much prefer the backup commander Marneus Calgar over the face commander of Inquisitor Greyfax
The defining feature of this is that it is a four mana card and thus pretty far from ideal but it is one of relatively few cards with this kind of effect making it also a necessary evil from time to time
As with many of the cards in this list it does cost you and in this case it is card advantage but we return to the simple point that you could have any number of cards, if they are all land or all spells you are not going to be doing much
The samurai side (Kenzo the Hardhearted) is very powerful as a 3/4 with double strike and bushido 2