Tectonic Instability 
Enchantment
$3.63 #14120 1.35 25.9 years
Whenever a land enters, tap all lands its controller controls.
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Cards similar to Tectonic Instability expected a card that isn't here?
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Seed the Land84%
$4.97↑#165290.33↓21.3 years↓
"Whenever a land enters, its controller creates a 1/1 green Snake creature token."
Shattered Angel80%
$0.46↓#6869↑0.11↓15.3 years↓
"Whenever a land an opponent controls enters, you may gain 3 life."
Lifegift79%
$10.24↑#120560.26↓21.6 years↓
"Whenever a land enters, you may gain 1 life."
Gulf Squid79%
$0.15↓#27248↓0.46↓26.3 years
"When this creature enters, tap all lands target player controls."
Ankh of Mishra78%
$8.84↑#4895↑1.04↓33.1 years↑
"Whenever a land enters, this artifact deals 2 damage to that land's controller."
Foe-liage76%
$0.29↓#26372↓0.00↓0.5 years↓
"Whenever a land enters during your turn, put a +1/+1 counter on this creature."
Nightshade Harvester74%
$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."
Curse of the Restless Dead74%
$3.58↓#5123↑0.25↓4.9 years↓
"Whenever a land enchanted player controls enters, you create a 2/2 black Zombie creature token with decayed."
Horn of Greed74%
$7.77↑#2138↑0.38↓28.5 years↑
"Whenever a player plays a land, that player draws a card."
Pangosaur74%
$0.51↓#23076↓0.21↓26.9 years
"Whenever a player plays a land, return this creature to its owner's hand."
Polluted Bonds73%
$6.30↑#3640↑0.62↓18.3 years↓
"Whenever a land an opponent controls enters, that player loses 2 life and you gain 2 life."
Makindi Ox72%
$0.11↓#18624↓0.06↓5.9 years↓
"Whenever a land you control enters, tap target creature an opponent controls."
Tunnel Ignus72%
$0.55↓#18263↓0.40↓15.9 years↓
"Whenever a land enters under an opponent's control, if that player had another land enter the battlefield under their control this turn, this creature deals 3 damage to that player."
Mana Web72%
$18.78↑#115511.3929.2 years↑
"Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce."
Zo-Zu the Punisher72%
$4.00↑#4047↑0.78↓21.9 years↓
"Whenever a land enters, Zo-Zu deals 2 damage to that land's controller."
Rishadan Dockhand72%
$0.23↓#17356↓0.19↓5.3 years↓
"
, 
: Tap target land."
, : Tap target land."
Dirtcowl Wurm72%
$2.32↓#158890.41↓28.9 years↑
"Whenever an opponent plays a land, put a +1/+1 counter on this creature."
Confounding Conundrum71%
$0.33↓#8065↑0.29↓5.9 years↓
"Whenever a land an opponent controls enters, if that player had another land enter the battlefield under their control this turn, they return a land they control to its owner's hand."
Invader Parasite70%
$0.22↓#19796↓0.82↓15.3 years↓
"Whenever a land an opponent controls with the same name as the exiled card enters, this creature deals 2 damage to that player."
Rishadan Port70%
$8.65↑#145800.41↓26.9 years
", : Tap target land."
, : Tap target land."