Arena League 1999
Forest
({T}: Add {G}.)
Pouncing Jaguar
Echo {G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
One pounce, she's hungry—you die quickly. Two, she's teaching her cubs—you're in for a long day.
Island
({T}: Add {U}.)
Skittering Skirge
Flying
When you cast a creature spell, sacrifice Skittering Skirge.
The imps' warbling cries echo through Phyrexia's towers like those of mourning doves in a cathedral.
Mountain
({T}: Add {R}.)
Rewind
Counter target spell. Untap up to four lands.
"Time flows like a river. In Tolaria we practice the art of building dams."
—Barrin, master wizard
Plains
({T}: Add {W}.)
Karn, Silver Golem
Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn.
{1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.
Swamp
({T}: Add {B}.)