Orb of Dragonkind 157/281 (Adventures in the Forgotten Realms)

{1}, {T}: Add two mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons. {R}, {T}, Sacrifice this artifact: Look at the top seven cards of your library. You may reveal a Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50