Curse of Predation 
Enchantment — Aura Curse
$0.19 #14619 0.33 13.0 years
Enchant player
Whenever a creature attacks enchanted player, put a +1/+1 counter on it.
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Gleam of Battle90%
$0.14↓#139300.17↓13.5 years
"Whenever a creature you control attacks, put a +1/+1 counter on it."
Armory of Iroas84%
$0.23↑#8026↑0.2712.5 years
"Whenever equipped creature attacks, put a +1/+1 counter on it."
Bone Sabres84%
$4.79↑#6114↑0.07↓4.0 years↓
"Whenever equipped creature attacks, put four +1/+1 counters on it."
Leader's Talent82%
$0.49↑#9851↑0.330.6 years↓
"Whenever you attack, put a +1/+1 counter on target attacking creature."
Curse of Vitality81%
$1.20↑#124220.16↓9.2 years↓
"Whenever enchanted player is attacked, you gain 2 life. Each opponent attacking that player does the same."
+1 more matching line
Fangren Firstborn80%
$2.18↑#157240.2622.7 years↑
"Whenever this creature attacks, put a +1/+1 counter on each attacking creature."
Andúril, Narsil Reforged80%
$9.82↑#2600↑0.393.0 years↓
"Whenever equipped creature attacks, put a +1/+1 counter on each creature you control. If you have the city's blessing, put two +1/+1 counters on each creature you control instead."
Seismic Tutelage77%
$0.90↑#11095↑0.310.9 years↓
"Whenever enchanted creature attacks, double the number of +1/+1 counters on it."
Drana, Liberator of Malakir77%
$1.10↑#1550↑0.18↓11.0 years↓
"Whenever this card deals combat damage to a player, put a +1/+1 counter on each attacking creature you control."
Curse of Verbosity76%
$0.48↑#3844↑0.249.2 years↓
"Whenever enchanted player is attacked, you draw a card. Each opponent attacking that player does the same."
+1 more matching line
Curse of Disturbance76%
$0.61↑#4128↑0.249.2 years↓
"Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same."
+1 more matching line
Curse of the Forsaken75%
$0.25↑#172090.44↑13.0 years
"Whenever a creature attacks enchanted player, its controller gains 1 life."
+1 more matching line
Shape of the Wiitigo74%
$0.34↑#25610↓0.3220.2 years↑
"At the beginning of your upkeep, put a +1/+1 counter on enchanted creature if it attacked or blocked since your last upkeep. Otherwise, remove a +1/+1 counter from it."
Basri, Devoted Paladin74%
$0.64↑#22705↓0.10↓6.3 years↓
"−1: Whenever a creature attacks this turn, put a +1/+1 counter on it."
Greatsword of Tyr74%
$0.35↑#7399↑0.22↓4.4 years↓
"Whenever equipped creature attacks, put a +1/+1 counter on it and tap up to one target creature defending player controls."
Armasaur Guide74%
$0.09↓#17861↓0.06↓1.9 years↓
"Whenever you attack with three or more creatures, put a +1/+1 counter on target creature you control."
Black Panther, Claws of Bast73%
$1.44↑#21263↓0.310.3 years↓
"Whenever a creature you control attacks alone, put a +1/+1 counter on it."
Vrestin, Menoptra Leader73%
$0.38↑#139220.06↓3.0 years↓
"Whenever you attack with one or more Insects, put a +1/+1 counter on each of them."
Basri Ket72%
$1.29↑#7057↑0.296.3 years↓
"−2: Whenever one or more nontoken creatures attack this turn, create that many 1/1 white Soldier creature tokens that are tapped and attacking."
Forced Adaptation72%
$0.14↓#8490↑0.00↓13.7 years
"At the beginning of your upkeep, put a +1/+1 counter on enchanted creature."
+1 more matching line