Combos Utilizing Dwarven-Ruins

play all 4 cards then tap and sacrifice the dwarven ruins to add 3 mana to your mana pool then tap and sacrifice the orcish settlers do deal 2+x damage to target land(s) controller, x=#of land payed

declare krosan wayfarer as a blocker. before damage is dealt, sac it to put dwarven ruins into play tapped. untap it on your turn and it provides mana one turn earlier than normal.

have burgeoning in play. when your opponent plays a land put dwarven ruins into play tapped. untap it on your turn and it provides mana one turn earlier than normal.

have the 3 urza's lands in play (mine,tower,power plant) and dwarven ruins. tap urza's lands & sac dwarven ruins to cast avatar of fury