Overgrown Arch 

Creature — Plant Wall
Defender
{T}: You gain 1 life.
{2}, Sacrifice this creature: Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)
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.
Temple Elder 98%
$0.22#31372
"{T}: You gain 1 life. Activate only during your turn, before attackers are declared."
Shu Farmer 98%
$3.20#29545
"{T}: You gain 1 life. Activate only during your turn, before attackers are declared."
Chalice of Life // Chalice of Death 97%
$0.43#8146
"{T}: You gain 1 life. Then if you have at least 10 life more than your starting life total, transform this artifact."
Mine Worker 97%
$0.13#18334
"{T}: You gain 1 life. If you control creatures named Power Plant Worker and Tower Worker, you gain 3 life instead."
Luxa River Shrine 93%
$0.15#21111
"{T}: You gain 2 life. Activate only if there are three or more brick counters on this artifact."
Potioner's Trove 92%
$0.12#13031
"{T}: You gain 2 life. Activate only if you've cast an instant or sorcery spell this turn."
Copper Gnomes 80%
$2.28#20204
"{4}, Sacrifice this creature: You may put an artifact card from your hand onto the battlefield."
Alseid of Life's Bounty 80%
$0.35#2672
"{1}, Sacrifice this creature: Target creature or enchantment you control gains protection from the color of your choice until end of turn."