Special features include: Job Select - A hero may walk many paths, and the gear those heroes carry can change their destiny
And if you have further doubts, you can contact a specialist
Whether or not players care about the treasures, the damage, sacrifice, and ramp values of the card make it a definite include in any 100-card Riveteers deck
This is almost like a delayed Grab Your Sword on a stick
Lets look at some examples: Confront the Past has a mana value of 1, but if you cast it for X=4 then it will have a mana value of 5 (4+1) on the stack
Notice how many of those cards have synergy and overlap, allowing me to pursue three themes in a single deck, and I also plan to have a number of generically good cards that I use in many of my decks, such as True Conviction, Mirari's Wake, Seedborn Muse, or Sigarda, Font of Blessings, as well as several cards that I have not used in any of my previous decks, thus far, such as Hydra Broodmaster, Pledge of Loyalty, Camaraderie, Commander's Plate, Behemoth Sledge, Shield of the Oversoul, or Veteran Beastrider