Most played cards in Mardu:

2 Decks
 ↓ Bloodstained Mire
8 copies – 4 avg
↓ Inquisition of Kozilek
8 copies – 4 avg
↓ Lightning Bolt
8 copies – 4 avg
↓ Lingering Souls
8 copies – 4 avg
↓ Nihil Spellbomb
4 copies – 2 avg
↓ Faithless Looting
4 copies – 2 avg
↓ Blackcleave Cliffs
4 copies – 2 avg
↓ Avaricious Dragon
4 copies – 2 avg
↓ Chromatic Star
4 copies – 2 avg
↓ Wear // Tear
4 copies – 2 avg
↓ Sacred Foundry
4 copies – 2 avg
↓ Young Pyromancer
4 copies – 2 avg
↓ Rain of Tears
4 copies – 2 avg
↓ Myth Realized
4 copies – 2 avg
↓ Crack the Earth
4 copies – 2 avg
↓ Flagstones of Trokair
4 copies – 2 avg
↓ Smallpox
4 copies – 2 avg
↓ Godless Shrine
4 copies – 2 avg
↓ Kolaghan's Command
3 copies – 1.5 avg
↓ Leyline of the Void
3 copies – 1.5 avg