Thoughtleech 
Enchantment
$0.22 #25083 0.36 31.4 years
Whenever an Island an opponent controls becomes tapped, you may gain 1 life.
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Cards similar to Thoughtleech expected a card that isn't here?
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Roots of Life93%
$0.33↑#204070.3530.0 years↓
"Whenever a land of the chosen type an opponent controls becomes tapped, you gain 1 life."
Lifeblood90%
$20.64↑#30814↓0.2732.4 years↑
"Whenever a Mountain an opponent controls becomes tapped, you gain 1 life."
Lifetap87%
$0.19↓#211270.06↓33.2 years↑
"Whenever a Forest an opponent controls becomes tapped, you gain 1 life."
Scald86%
$0.29↑#257311.12↑28.0 years↓
"Whenever a player taps an Island for mana, this enchantment deals 1 damage to that player."
Wanderbrine Preacher82%
$0.17↓#17799↑0.12↓0.7 years↓
"Whenever this creature becomes tapped, you gain 2 life."
Vampire Envoy80%
$0.12↓#19223↑0.00↓10.7 years↓
"Whenever this creature becomes tapped, you gain 1 life."
Gideon's Avenger76%
$0.69↑#14609↑0.3815.3 years↓
"Whenever a creature an opponent controls becomes tapped, put a +1/+1 counter on this creature."
Sanctimony76%
$0.10↓#264660.06↓27.4 years↓
"Whenever an opponent taps a Mountain for mana, you may gain 1 life."
Wu Admiral76%
$2.39↑#31347↓0.25↓27.5 years↓
"This creature gets +1/+1 as long as an opponent controls an Island."
Water Wurm76%
$0.23↑#31574↓0.00↓32.2 years
"This creature gets +0/+1 as long as an opponent controls an Island."
Emmara, Soul of the Accord74%
$0.32↑#6681↑0.12↓8.0 years↓
"Whenever this card becomes tapped, create a 1/1 white Soldier creature token with lifelink."
Powerleech73%
$20.88↑#216240.3332.6 years↑
"Whenever an artifact an opponent controls becomes tapped or an opponent activates an artifact's ability without 
in its activation cost, you gain 1 life."
in its activation cost, you gain 1 life."
Chrome Companion72%
$0.25↑#9903↑0.21↓1.2 years↓
"Whenever this creature becomes tapped, you gain 1 life."
Typhoon72%
$19.47↑#30103↓0.21↓32.4 years↑
"this card deals damage to each opponent equal to the number of Islands that player controls."
Wylie Duke, Atiin Hero72%
$0.29↑#7986↑0.06↓2.5 years↓
"Whenever this card becomes tapped, you gain 1 life and draw a card."
Monsoon72%
$0.95↑#274210.62↑31.4 years
"At the beginning of each player's end step, tap all untapped Islands that player controls and this enchantment deals X damage to the player, where X is the number of Islands tapped this way."
Night Market Lookout70%
$0.17↓#13146↑0.00↓10.1 years↓
"Whenever this creature becomes tapped, each opponent loses 1 life and you gain 1 life."
Blight70%
$0.25↑#243570.72↑32.4 years↑
"When enchanted land becomes tapped, destroy it."
Betrayal70%
$0.29↑#13723↑0.2829.7 years↓
"Whenever enchanted creature becomes tapped, you draw a card."