Most played cards in Grixis Shadow:

4 Decks
 ↓ Thoughtseize
16 copies – 4 avg
↓ Death's Shadow
16 copies – 4 avg
↓ Bloodstained Mire
16 copies – 4 avg
↓ Polluted Delta
16 copies – 4 avg
↓ Preordain
16 copies – 4 avg
↓ Street Wraith
15 copies – 3.75 avg
↓ Thought Scour
15 copies – 3.75 avg
↓ Stubborn Denial
15 copies – 3.75 avg
↓ Fatal Push
12 copies – 3 avg
↓ Gurmag Angler
12 copies – 3 avg
↓ Snapcaster Mage
11 copies – 2.75 avg
↓ Mishra's Bauble
10 copies – 2.5 avg
↓ Watery Grave
8 copies – 2 avg
↓ Temur Battle Rage
8 copies – 2 avg
↓ Blood Crypt
8 copies – 2 avg
↓ Inquisition of Kozilek
8 copies – 2 avg
↓ Kolaghan's Command
8 copies – 2 avg
↓ Scalding Tarn
8 copies – 2 avg
↓ Surgical Extraction
7 copies – 1.75 avg
↓ Anger of the Gods
7 copies – 1.75 avg