Legendary Collection A rather unique set in the history of the TCG's releases, Legendary Collection is a stand-alone set, made up of reprints from Base Set, Jungle, Fossil, and Team Rocker expansions
Use the Lotus to tap for triple black, then untap it for one mana with the Staffs first ability, draw your entire deck (thanks to Staff of Domination), cast an infinitely large Exsanguinate or Torment of Hailfire and youre done
Massacre Wurm is the kind of card that slots into a fair few archetypes, from Aristocrats to Control, and one that helps some of those decks achieve a higher level of consistency
There's an argument to be made that using Vivi as intended can result in long, drawn-out games of Commander where your opponents can get easily frustrated, but the strength of Vivi lies in his versatility
Even in a depowered deck, you can find Salt Marsh, Jwar Isle Refuge, Frost Marsh, and Secluded Glen to make the other colors in a deck built around The Mimeoplasm or something