Vow of Duty 

Enchantment — Aura
$0.10 #7380 0.07 15.3 years
Enchant creature
Enchanted creature gets +2/+2, has vigilance, and can't attack you or planeswalkers you control.
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Vow of Flight92%
$0.16↑#11888↓0.1615.3 years
"Enchanted creature gets +2/+2, has flying, and can't attack you or planeswalkers you control."
Vow of Lightning92%
$0.14↑#79620.19↑15.3 years
"Enchanted creature gets +2/+2, has first strike, and can't attack you or planeswalkers you control."
+1 more matching line
Vow of Torment91%
$0.29↑#9450↓0.125.9 years↓
"Enchanted creature gets +2/+2, has menace, and can't attack you or planeswalkers you control."
+1 more matching line
Vow of Wildness90%
$0.23↑#10559↓0.0615.3 years
"Enchanted creature gets +3/+3, has trample, and can't attack you or planeswalkers you control."
+1 more matching line
Vow of Malice90%
$0.67↑#9274↓0.1615.3 years
"Enchanted creature gets +2/+2, has intimidate, and can't attack you or planeswalkers you control."
+1 more matching line
Spectral Grasp83%
$0.24↑#15791↓0.40↑10.1 years↓
"Enchanted creature can't attack you or planeswalkers you control."
+1 more matching line
Eriette of the Charmed Apple76%
$0.34↑#3929↑0.32↑3.1 years↓
"Each creature that's enchanted by an Aura you control can't attack you or planeswalkers you control."
Soul-Strike Technique76%
$0.11↑#25464↓0.007.4 years↓
"Enchanted creature gets +1/+1 and has vigilance."
Sandwurm Convergence75%
$0.35↑#2428↑0.43↑9.5 years↓
"Creatures with flying can't attack you or planeswalkers you control."
Triclopean Sight72%
$0.21↑#15510↓0.27↑19.0 years↑
"Enchanted creature gets +1/+1 and has vigilance."
Marked by Honor72%
$0.05↓#22923↓0.0012.3 years↓
"Enchanted creature gets +2/+2 and has vigilance."
+1 more matching line