The Dragonslayer is a 4-health unit that is a melee machine. They are also part of the Eldarim race. A Dragonslayer can kill any color of dragon if it rolls its SFR/TSR Logo prior to the dragon attack. Dragonslayers can cast any color of magic (not just the colors at the current terrain). Dragonslayers can carry magical items (including medallions) of any color. You can bring at most one Dragonslayer.
These are the champions of the Eldarim race. See the Acolytes of the Eldarim kicker for more information.