Tahngarth's Rage 
Enchantment — Aura
$0.18 #26940 0.12 29.0 years
Enchant creature
Enchanted creature gets +3/+0 as long as it's attacking. Otherwise, it gets -2/-1.
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Mishra's Domination90%
$0.08↓#235010.073.9 years↓
"Enchant creature"
Nyx Infusion87%
$0.06↓#296060.1112.5 years↓
"Enchanted creature gets +2/+2 as long as it's an enchantment. Otherwise, it gets -2/-2."
Serra's Boon86%
$0.22↑#296770.0619.7 years↓
"Enchanted creature gets +1/+2 as long as it's white. Otherwise, it gets -2/-1."
Sadistic Glee84%
$1.48↑#12684↑0.1729.0 years
"Enchant creature"
Gift of Fangs82%
$0.20↑#14834↑0.134.9 years↓
"Enchanted creature gets +2/+2 as long as it's a Vampire. Otherwise, it gets -2/-2."
Enfeeblement82%
$0.08↓#292120.00↓30.0 years↑
"Enchanted creature gets -2/-2."
Phyrexian Boon81%
$0.09↓#304350.1030.4 years↑
"Enchanted creature gets +2/+1 as long as it's black. Otherwise, it gets -1/-2."
Dog Umbra80%
$0.21↑#7182↑0.28↑2.3 years↓
"Enchant creature"
Sea Legs76%
$0.04↓#260980.00↓8.8 years↓
"Enchanted creature gets +0/+2 as long as it's a Pirate. Otherwise, it gets -2/-0."
+1 more matching line
Clutch of Undeath72%
$0.11↓#296600.35↑23.4 years↓
"Enchanted creature gets +3/+3 as long as it's a Zombie. Otherwise, it gets -3/-3."
Volrath's Curse72%
$0.18#257070.1229.0 years
"Enchant creature"
Ironclaw Curse72%
$0.33↑#314930.1931.1 years↑
"Enchanted creature gets -0/-1."
+1 more matching line
Exotic Curse71%
$0.13↓#289990.28↑26.0 years↓
"Enchanted creature gets -1/-1 for each basic land type among lands you control."
Death's Approach70%
$0.16↓#21466↑0.1113.7 years↓
"Enchanted creature gets -X/-X, where X is the number of creature cards in its controller's graveyard."