Most played cards in Boros:

1 Decks
Stone Quarry
4 copies - 4 average
Inspiring Vantage
4 copies - 4 average
Glory-Bound Initiate
4 copies - 4 average
Sunbird's Invocation
4 copies - 4 average
Cast Out
4 copies - 4 average
Gideon of the Trials
3 copies - 3 average
Heart of Kiran
3 copies - 3 average
Fumigate
3 copies - 3 average
Settle the Wreckage
3 copies - 3 average
Abrade
3 copies - 3 average
Regal Caracal
3 copies - 3 average
Chandra, Torch of Defiance
3 copies - 3 average
Approach of the Second Sun
3 copies - 3 average
Ixalan's Binding
2 copies - 2 average
Vance's Blasting Cannons
2 copies - 2 average
Combustible Gearhulk
2 copies - 2 average
Solemnity
1 copies - 1 average
Chandra's Defeat
1 copies - 1 average
Captain Lannery Storm
1 copies - 1 average
Angel of Sanctions
1 copies - 1 average