Tectonic Instability 
Enchantment
$3.76 #14399 1.50 26.0 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?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Seed the Land84%
$5.62↑#167650.06↓21.4 years↓
"Whenever a land enters, its controller creates a 1/1 green Snake creature token."
Shattered Angel80%
$0.51↓#6694↑0.07↓15.4 years↓
"Whenever a land an opponent controls enters, you may gain 3 life."
Lifegift79%
$11.55↑#11485↑0.15↓21.7 years↓
"Whenever a land enters, you may gain 1 life."
Gulf Squid79%
$0.14↓#27581↓0.50↓26.4 years
"When this creature enters, tap all lands target player controls."
Ankh of Mishra78%
$8.82↑#5030↑1.01↓33.2 years↑
"Whenever a land enters, this artifact deals 2 damage to that land's controller."
Foe-liage76%
$0.18↓#25936↓0.16↓0.6 years↓
"Whenever a land enters during your turn, put a +1/+1 counter on this creature."
Nightshade Harvester74%
$0.36↓#4775↑0.28↓5.9 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%
$2.91↓#5174↑0.27↓5.1 years↓
"Whenever a land enchanted player controls enters, you create a 2/2 black Zombie creature token with decayed."
Horn of Greed74%
$7.19↑#2123↑0.39↓28.6 years↑
"Whenever a player plays a land, that player draws a card."
Pangosaur74%
$0.54↓#23163↓0.00↓27.0 years
"Whenever a player plays a land, return this creature to its owner's hand."
Polluted Bonds73%
$5.25↑#3731↑0.62↓18.5 years↓
"Whenever a land an opponent controls enters, that player loses 2 life and you gain 2 life."
Tunnel Ignus72%
$0.53↓#18522↓0.41↓16.1 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%
$18.07↑#117501.64↑29.4 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%
$4.62↑#4159↑1.11↓22.1 years↓
"Whenever a land enters, Zo-Zu deals 2 damage to that land's controller."
Rishadan Dockhand72%
$0.22↓#17696↓0.12↓5.5 years↓
"
, 
: Tap target land."
, : Tap target land."
Dirtcowl Wurm72%
$2.30↓#162350.67↓29.1 years↑
"Whenever an opponent plays a land, put a +1/+1 counter on this creature."
Makindi Ox72%
$0.13↓#18895↓0.65↓6.1 years↓
"Whenever a land you control enters, tap target creature an opponent controls."
Confounding Conundrum71%
$0.30↓#8205↑0.29↓6.1 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%
$0.23↓#20195↓0.13↓15.4 years↓
"Whenever a land an opponent controls with the same name as the exiled card enters, this creature deals 2 damage to that player."
Hidden Stag70%
$0.44↓#29886↓0.00↓28.0 years↑
"Whenever an opponent plays a land, if this permanent is an enchantment, it becomes a 3/2 Elk Beast creature."