Okk 

Creature — Goblin
$0.33 #25405 0.15 28.0 years
This creature can't attack unless a creature with greater power also attacks.
This creature can't block unless a creature with greater power also blocks.
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Cards similar to Okk 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.
Goblin Mutant95%
$0.15↓#31379↓0.00↓31.4 years↑
"This creature can't block creatures with power 3 or greater."
+1 more matching line
Orgg95%
$0.35↑#31891↓0.2432.0 years↑
"This creature can't block creatures with power 3 or greater."
+1 more matching line
Brassclaw Orcs92%
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"This creature can't block creatures with power 2 or greater."
Ironclaw Orcs92%
$0.11↓#31245↓0.00↓33.2 years↑
"This creature can't block creatures with power 2 or greater."
Tiger-Dillo90%
$0.10↓#224300.02↓0.9 years↓
"This creature can't attack or block unless you control another creature with power 4 or greater."
Cyclops Tyrant88%
$0.08↓#31420↓0.00↓13.3 years↓
"This creature can't block creatures with power 2 or less."
Hipparion88%
$0.18↓#273120.0531.4 years↑
"This creature can't block creatures with power 3 or greater unless you pay
."
Mogg Jailer88%
$0.13↓#31859↓0.00↓25.7 years↓
"This creature can't attack if defending player controls an untapped creature with power 2 or less."
Orcish Conscripts87%
$0.11↓#30851↓0.0531.4 years↑
"This creature can't attack unless at least two other creatures attack."
+1 more matching line
Technodrome84%
$1.71↑#10237↑0.34↑0.6 years↓
"This creature can't attack or block unless its power is 6 or greater."