The hype for both these sets is extremely high
When this creature dies, if it had a revival counter on it, return it to the battlefield with one fewer revival counter on it at the beginning of the next end step
In Commander his deck should contain plenty of red cards with high mana values and casting cost reduction, such as Blasphemous Act or Volcanic Salvo - you want cards that you can pitch to get a huge Blazing Shoal pump, but which you also have a good chance to cast normally
Mystic Snake was often a way to do damage to an opponent who you otherwise couldn't find an opening to get a threat down against or a two-for-one by fighting one of the many bears that were in decks in those days, and when it did these things it was good
Aided by the demon, he is able to track the creature's current host, but any attempts on killing the creature end up in the host being dead (either from the Honor Guard's hand, or by the creature escaping from its host and taking its life with it)
It's fun in the sun from where I am frumping around and reminds me of a Trading Post in land form