One of them even featured a group of mechanically unique characters
Its even pretty good in big-mana decks, as it provides a huge amount of defensibility to incoming attacks, and lets you attack quite freely too
Firstly, I appreciate how it skirts the weakness of most Howling Mine cards by making players draw cards in your upkeep
However, Baloo - Ol' Iron Paws is a great support character to have in play, as his ability Fight Like a Bear means that any character with a Strength of 7 the player has in play cannot take any damage when Baloo - Ol' Iron Paws is in play
Rakdos was already deep in Assassins prior to this set with things you'd love to bring back like Nekrataal, Big Game Hunter, Guul Draz Assassin, Massacre Girl, Queen Marchesa and loads more