They have some lovely synergies: Mewtwo has a super-powerful attack that requires you to dispose of two energy from it every time it's used, but Gardevoir, a third-stage evolution that takes just long enough to find and lay down to be somewhat balanced, has an ability that can be used from the bench, allowing you to attach one more Psychic energy to a Pokmon of your choice
Jumpstart Boosters / Booster Display Quick, fun, and easy with 5 unique themes from Phyrexia: All Will Be One
Boros Reckoner and Spitemare are pretty much Stuffy Dolls 5 five through 9
Besides creatures that make more creatures, ideal reanimation targets are creatures that have a big impact the moment they hit the battlefield, so that even an opponent holding Swords to Plowshares with available will have a hard time recovering from your unfairness
Teal Masks Attack and Ability work in perfect harmony together, giving you plenty of Energy and freedom to take advantage of how Grass-centric Twilight Masquerade is
You must build a bunch of cards with multiple card types into your deck, but that's where the fun begins