Focusing on discard is certainly the most common, and its quite effective with cards like Containment Construct to help break symmetry, but you can toy around with sacrifice synergies and even fiddle with a group-hug-esque strategy depending on your card choices
If you see an EX you need, it's worth the extra Stamina cost for a 1-in-5 chance to unlock it
The three starter decks feature different color combinations, and do a good job showing off different styles and combos
Use it as one clue, not the only one
This means that Kethis is one of the few cards in all of Magic that allows for Planeswalkers to be easily recurred from the graveyard, providing Planeswalkers with a sort of insurance policy in case they're destroyed
As has been the case before, these wont have the same art or names as their original Walking Dead-flavoured counterparts