Most played cards in Rkados:

1 Decks
Lightning Bolt
4 copies - 4 average
Abbot of Keral Keep
4 copies - 4 average
Blackcleave Cliffs
4 copies - 4 average
Bloodstained Mire
4 copies - 4 average
Lava Dart
4 copies - 4 average
Mishra's Bauble
4 copies - 4 average
Soul-Scar Mage
4 copies - 4 average
Light Up the Stage
4 copies - 4 average
Monastery Swiftspear
4 copies - 4 average
Fatal Push
3 copies - 3 average
Sunbaked Canyon
3 copies - 3 average
Snow-Covered Mountain
3 copies - 3 average
Molten Rain
3 copies - 3 average
Angrath's Rampage
3 copies - 3 average
Thoughtseize
3 copies - 3 average
Collective Brutality
3 copies - 3 average
Seal of Fire
3 copies - 3 average
Nihil Spellbomb
2 copies - 2 average
Blood Crypt
2 copies - 2 average
Cling to Dust
2 copies - 2 average