If more than three other nontoken permanents you control leave the battlefield simultaneously, that choice is made only for the first three
With all of the mana dorks, utility creatures, and hordes of tokens in Commander, you can count on Massacre Wurm to put in a lot of work in most games while leaving your creatures around to continue the fight
[cards] Tezzeret, Cruel Captain Repurposing Bay Grindstone [/cards] Another strong engine comes from [card]Tezzeret, Cruel Captain[/card] and [card]Repurposing Bay[/card]
However, its true home is as a U Devotion card and it is a much more multifaceted card in these shells
When a player played Shaymin EX from their hand to their Bench, they could instantly draw cards until they held exactly six cards in their hand
Now, that sounds painful, but I'm sure you've heard the mantra 'life is a resource'