Most played cards in URW skill:

1 Decks
Tundra
4 copies - 4 average
Volcanic Island
4 copies - 4 average
Chain Lightning
4 copies - 4 average
City of Brass
4 copies - 4 average
Mishra's Factory
4 copies - 4 average
Blue Elemental Blast
4 copies - 4 average
Disenchant
4 copies - 4 average
Lightning Bolt
4 copies - 4 average
Savannah Lions
4 copies - 4 average
Serendib Efreet
4 copies - 4 average
Psionic Blast
3 copies - 3 average
Red Elemental Blast
3 copies - 3 average
Counterspell
2 copies - 2 average
Divine Offering
2 copies - 2 average
Control Magic
2 copies - 2 average
Plateau
2 copies - 2 average
Black Lotus
1 copies - 1 average
Mox Emerald
1 copies - 1 average
Library of Alexandria
1 copies - 1 average
Mox Jet
1 copies - 1 average