These references aren't totally obscure, but I also picked ones that aren't such popular knowledge that even people who haven't played the games probably know about them, like Sephiroth killing Aerith
Shutting down all of your opponents activated abilities, this dynamic duo throws a spanner in the works of even the best-laid plans, while simultaneously extending your own options by absorbing said abilities into their own text box
Then you have to cast them, so you'll want to run the mana for them
In addition, the set focuses less on introducing new keywords and more on further supporting some classifications and varying the kinds of shifts or upgrades that characters can do based on the cards Ive seen so far
Tinker Bell Very Clever Fairy works amazingly in an item deck, helping to ramp if a little late in the game
If you need an army in a hurry, this card will quickly flood the board with Gnome tokens