It wont help you with nightbound werewolves, but since it has to be night for them to stay in that form, it can flip the other types of werewolves and keep them transformed
Varchild, Betrayer of Kjeldor could be fun in some sort of group slug deck where you give your opponent tokens but in a harmful manner (maybe with something like Trespasser's Curse on the battlefield), although she might be better in the 99, since mono-red is pretty limiting
Pack a bunch of changelings and creatures with great typal bonuses and go to town
Obviously, you dont want a sleeve thats going to look like youve had it in the attic for the past 10 years after just a couple of months or, god forbid, a couple of weeks
Among the new ones are V.A.T.S., which destroys all creatures that share a toughness of your choice, and it has split second, a throwback to the in-game system of targeting
The main thing the core cards have in common is that they are able to be played regardless of colour or having coloured mana and they are predominantly artifacts themselves