First off, Id like to wish everyone a Happy New Year
The effect of the instant is kind of a boring buff, with the only interesting thing involved being the involvement of dice, which this set really seems to like
I am actually not going to go into these two cards because I think Host and Augment cards are worthy of their own column and I am already pushing my word count this week as it is
That creature's controller creates a 4/3 blue Salamander Warrior creature token." [Amphin Mutineer] is able to take out one of your opponent's biggest creatures and leave them behind with what in Commander is a fairly innocuous 4/3 body (as it's more the creature's abilities than their power and toughness that matters), said Mines, who considered the card significantly more powerful than Gor Muldrak, Amphinologist
This goes very well with cards that make several outlaws like Hellspur Posse Boss or cards that care about your opponents taking damage
It could return virtually every non-land permanent an opponent controlled in one fell swoop (and there are stories of people using Aurora Griffin to return the lands as well!), turning a stalemated game into an instant-win with your hordes now free to march unopposed through enemy territory