After Game One, the players have the option to swap in any number of the 15 cards from their sideboard in an effort to make their deck better suited to winning the next game
Spells cast from zones other than a player's hand and spells that were countered are counted by the storm ability
The other part of Kolodins ability is that when either one of those card types enters the battlefield, they automatically become either mounted or crewed, whichever is most appropriate
because they were designed to match the rings of power that Sauron distributed to the dwarves, elves, and humans
There are no life totals, so don't worry about that
So, if youre excited by this deck, it might be a great time to pick it up