Mass reanimation decks that play cards like Living Death or Agadeem's Awakening // Agadeem, the Undercrypt are not that common
Rules 11/10/20 If something refers to your commander while you have two commanders, it refers to one of them of your choice
Well it's on death, and a lot of creatures have to have died, so not that great, though it has scry 3 on ETB, which is nice, but 3/3 for 4 isn't going to cut it in many decks
Six mana for a couple of 1/1 snakes is pretty bad on rate, but some kind of aristocrats deck could make some good use of the ability on the back end
With all the powerful removal and sweepers around now, Feather decks have really fallen by the wayside, but for a time, they were a frustrating force to be reckoned with