Orb of Dragonkind

Сфера Драконьего Рода (Orb of Dragonkind) (ru)

Artifact (CMC 2)
, : Add two mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons.
, , Sacrifice Orb of Dragonkind: 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.