Flying {2}: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur-Dragon becomes a copy of that card until end of turn. Then shuffle.
"I am the blood of the ur-dragon, coursing through all dragonkind."
If Scorched Ruins would enter the battlefield, sacrifice two untapped lands instead. If you do, put Scorched Ruins onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {C}{C}{C}{C}.
A single molten cord links it to the subterranean furnaces, drawing heat and metal from beneath Kuldotha. Until that bond is cut, it carves a swath of raw destruction.
When Scour the Scene enters the battlefield, create a 2/2 white and blue Detective creature token. Whenever you sacrifice an artifact, choose a creature card in your hand or a creature you control. It perpetually gets +1/+0.
When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.
Flying {1}{R}: Scourge of Kher Ridges deals 2 damage to each creature without flying. {5}{R}: Scourge of Kher Ridges deals 6 damage to each other creature with flying.