Known for their distinctive style using block colors and simple line work, they have become very popular in the community, and even recently designed a Pokemon card
Just look at this short list of what you can get back, from the top of my head: Zulaport Cutthroat Cruel Celebrant Corpse Knight Elas il-Kor, Sadistic Pilgrim Bartolom del Presidio Blood Artist Viscera Seer Carrion Feeder Marionette Apprentice Reassembling Skeleton Putrid Goblin Cathar Commando Cast Raise the Past, sacrifice your entire board in response, and get them all back none the worse for wear
This card is shrouded in secrets, and mysteries players have been trying to solve for many years
Choose your five Dragons before casting Tiamat so you fetch a cohesive package, not just raw power
That said, far less impressive is still pretty good, relatively speaking
It refers to a creature card that has only one (or two) basic keyword abilities