Ascendant Packleader 
Creature — Wolf
This creature enters with a +1/+1 counter on it if you control a permanent with mana value 4 or greater.
Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature.
click a line to search just that ability, click more to combine them
Cards that do something similar 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.
Lurking Lizards 100%
$0.17#18848
"Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature."
Tempest Hart // Scan the Clouds 100%
$0.19#11699
"Whenever you cast a spell with mana value 5 or greater, put a +1/+1 counter on this creature."
Stormkeld Prowler 84%
$0.10#25133
"Whenever you cast a spell with mana value 5 or greater, put two +1/+1 counters on this creature."