For example, if you control another permanent with an ability that triggers at the beginning of your postcombat main phase and that ability is on the stack below Sorin of House Markov's last ability, there will be an opportunity for your opponent to remove Sorin, Ravenous Neonate before you can activate one of his abilities
Dusk // Dawn : The Dawn side allows you to return all creature cards with power 2 or less from your graveyard to your hand
In Commander there can be so much variance in mid and even high-powered play that good decks can have a bunch of bad games and lower powered decks can occasionally pop off and surprise you
Blood Moon turns those lands into Mountains, which are largely useless to many decks
Aside from the fact that Snow White can resurrect people, if you pair her with some protection, like Ward or Bodyguard, she has a good shot at staying on the board for a while
If you want to turn creatures sideways while accelerating, then Sword of the Animist might be the perfect tool for the job