A common or two snuck on to this list, but most of those will be in the next two categories
However, the Crusade card took things a little too far
Because of the way Rex, Cyber-Hound's second and third abilities are worded, he can continue to use abilities of exiled cards even after leaving play
The strength of Wrenn and Six lies in its +1 ability, which returns a land from your graveyard to your hand
Aphemia is solid here since the Zombie tokens matter in combat against the dorky Mono-Black Aggro creatures, and black creatures are kinda nice if your opponent shows up with Self-Inflicted Wound
Kenrith, the Returned King A little bit of everything, all of the time Are you someone who likes abilities on creatures you can activate at any time, and also someone who likes five-colour decks