Dirtcowl Wurm 
Creature — Wurm
$2.32 #15889 0.41 28.9 years
Whenever an opponent plays a land, put a +1/+1 counter on this creature.
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Foe-liage92%
$0.29↓#26372↓0.00↓0.5 years↓
"Whenever a land enters during your turn, put a +1/+1 counter on this creature."
Nightshade Harvester89%
$0.36↓#4497↑0.29↓5.8 years↓
"Whenever a land an opponent controls enters, that player loses 1 life. Put a +1/+1 counter on this creature."
Burgeoning84%
$30.62↑#899↑0.99↑28.5 years
"Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield."
Shattered Angel82%
$0.46↓#6869↑0.11↓15.3 years↓
"Whenever a land an opponent controls enters, you may gain 3 life."
Pangosaur78%
$0.51↓#23076↓0.21↓26.9 years↓
"Whenever a player plays a land, return this creature to its owner's hand."
Managorger Hydra77%
$0.99↓#997↑0.4811.1 years↓
"Whenever a player casts a spell, put a +1/+1 counter on this creature."
Territorial Scythecat76%
$0.16↓#7958↑0.385.9 years↓
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Vinelasher Kudzu76%
$0.34↓#132320.56↑20.9 years↓
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Sazh's Chocobo76%
$1.12↓#3068↑0.371.2 years↓
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Prowling Felidar76%
$0.18↓#140680.67↑5.9 years↓
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Taurean Mauler76%
$0.56↓#947↑0.3118.6 years↓
"Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature."
Hidden Stag76%
$0.46↓#29548↓0.53↑27.9 years↓
"Whenever an opponent plays a land, if this permanent is an enchantment, it becomes a 3/2 Elk Beast creature."
Horn of Greed75%
$7.77↑#2138↑0.3828.5 years
"Whenever a player plays a land, that player draws a card."
Noosegraf Mob74%
$0.29↓#10793↑0.3310.1 years↓
"Whenever a player casts a spell, remove a +1/+1 counter from this creature. If you do, create a 2/2 black Zombie creature token."
Citanul Druid74%
$8.63↑#28175↓0.53↑32.5 years↑
"Whenever an opponent casts an artifact spell, put a +1/+1 counter on this creature."
Archaeomancer's Map74%
$1.03↓#724↑0.23↓5.4 years↓
"Whenever a land an opponent controls enters, if that player controls more lands than you, you may put a land card from your hand onto the battlefield."
Ishai, Ojutai Dragonspeaker73%
$3.29↑#4668↑0.59↑9.8 years↓
"Whenever an opponent casts a spell, put a +1/+1 counter on this card."
Sunscorch Regent72%
$0.30↓#1686↑0.29↓11.4 years↓
"Whenever an opponent casts a spell, put a +1/+1 counter on this creature and you gain 1 life."
Tectonic Instability72%
$3.63↑#141201.35↑25.9 years↓
"Whenever a land enters, tap all lands its controller controls."
Murasa Ranger72%
$0.07↓#26866↓0.4010.9 years↓
"Whenever a land you control enters, you may pay 
. If you do, put two +1/+1 counters on this creature."
. If you do, put two +1/+1 counters on this creature."