At the beginning of each upkeep, put a strife counter on Crescendo of War.
Attacking creatures get +1/+0 for each strife counter on Crescendo of War.
Blocking creatures you control get +1/+0 for each strife counter on Crescendo of War.
Near Mint - $1.50
Near Mint Non-English - $1.50
Lightly Played - $1.50
Lightly Played Non-English - $1.50
Moderately Played - $1.25
Moderately Played Non-English - $1.25
Heavily Played - $1.00
Heavily Played Non-English - $1.00
Damaged - $0.75
Damaged Non-English - $0.75