Crescendo of War 
Enchantment
$2.27 #13902 0.07 15.3 years
At the beginning of each upkeep, put a strife counter on this enchantment.
Attacking creatures get +1/+0 for each strife counter on this enchantment.
Blocking creatures you control get +1/+0 for each strife counter on this enchantment.
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Cards similar to Crescendo of War expected a card that isn't here?
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"During your turn, attacking creatures get +1/+0."
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"Creatures you control get +1/+1 for each blessing counter on this enchantment."
Warded Battlements80%
$0.15↓#22954↓0.006.3 years↓
"Attacking creatures you control get +1/+0."
Call for Unity78%
$0.20↓#8322↑0.23↑9.7 years↓
"Creatures you control get +1/+1 for each unity counter on this enchantment."
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"Attacking creatures you control get +2/+0."
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$0.07↓#22256↓0.21↑11.3 years↓
"Attacking creatures you control get +1/+0."
Hold the Line75%
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"Blocking creatures get +7/+7 until end of turn."
Divine Intervention75%
$158.07↑#18187↓1.64↑32.4 years↑
"At the beginning of your upkeep, remove an intervention counter from this enchantment."
Piety74%
$0.11↓#30985↓0.0032.8 years↑
"Blocking creatures get +0/+3 until end of turn."
Iron Man, Tony Stark74%
$3.34↑#17270↓0.23↑0.3 years↓
"Attacking creatures you control get +1/+0."
Energy Vortex74%
$0.82↓#28836↓0.53↑30.0 years↑
"At the beginning of your upkeep, remove all vortex counters from this enchantment."
Márton Stromgald74%
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"Whenever this card blocks, other blocking creatures get +1/+1 until end of turn for each blocking creature other than this card."
+1 more matching line
Fire Nation's Conquest74%
$0.24↓#20529↓0.100.9 years↓
"Creatures you control get +1/+0."
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"Creatures you control get +1/+0."
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"Creatures you control get +1/+1 for each valor counter on this creature."
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"Attacking creatures you control get +3/+0."
+2 more matching lines