User summary: This card set was offered to participants in the Mark of Heroes organized play program. Cards were delivered through the D&D Rewards program and were mailed to recipients. Cards could be "played", as noted on the card itself, to gain some advantage in the organized play program. The set of ten cards included: Children of the Shadow Marches Dol Arrah's Sacrifice Master's Luck Iron Fortitude Amateur Inquisitive Swift Response Power and Precision Aundairian Arcanist Nomad of the Plains Forged of War N.B. Set 5 also included a Master's Luck card; the Set 3 card can be distinguished by the character wearing a green cloak.