Most played cards in Soldiers:

1 Decks
Suppression Field
4 copies - 4 average
Aerial Responder
4 copies - 4 average
Ancient Tomb
4 copies - 4 average
Chalice of the Void
4 copies - 4 average
Ethersworn Canonist
4 copies - 4 average
Leyline of the Void
4 copies - 4 average
Chrome Mox
4 copies - 4 average
Preeminent Captain
4 copies - 4 average
Daru Warchief
4 copies - 4 average
Palace Jailer
4 copies - 4 average
Thalia, Guardian of Thraben
4 copies - 4 average
Enlistment Officer
4 copies - 4 average
Trinisphere
3 copies - 3 average
Cavern of Souls
3 copies - 3 average
Thalia, Heretic Cathar
3 copies - 3 average
Umezawa's Jitte
2 copies - 2 average
Sanctum Prelate
2 copies - 2 average
Recruiter of the Guard
2 copies - 2 average
Karakas
2 copies - 2 average