Dwarven Kings

When Dwarven Kings enters the battlefield,
chose one you have not chosen for a Dwarven
King you control on the battlefield:
- Dwarves you control get +1/+1.
- Artifacts cost you {1} less to play.
- Equip cost you {2} less to pay.
- {2}{r}{t}: Destroy target nonbasic land.
- {1}{r}{r}{t}: Create a Gold and Treasure token.
- {2}, Sacrifice a Gold or Treasure: Draw a Card.
- {2}, Sacrifice a Gold or Treasure: Gain 3 Life.
A deck can have up to seven Dwarven Kings