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.
Arctic Aven 100%
$0.15#25054
"This creature gets +1/+1 as long as you control a Plains."
Hedge Troll 100%
$0.11#31444
"This creature gets +1/+1 as long as you control a Plains."
Wild Nacatl 100%
$0.46#15798
"This creature gets +1/+1 as long as you control a Plains."
Charismatic Vanguard 100%
$0.09#27762
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Sea Gate Banneret 100%
$0.10#27769
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Bearer of Glory 100%
$0.06#22591
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Dawnwing Marshal 100%
$0.12#17260
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Cliffside Lookout 100%
$0.07#25291
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Behind the Scenes 100%
$0.26#4964
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Timid Shieldbearer 100%
$0.14#21507
"{4}{W}: Creatures you control get +1/+1 until end of turn."
Gerrard's Battle Cry 100%
#26128
"{2}{W}: Creatures you control get +1/+1 until end of turn."
Selesnya Guildmage 99%
$0.12#16487
"{3}{W}: Creatures you control get +1/+1 until end of turn."
Warren Elder 99%
$0.16#13108
"{3}{W}: Creatures you control get +1/+1 until end of turn."
Leonin Sun Standard 98%
$0.33#23966
"{1}{W}: Creatures you control get +1/+1 until end of turn."
Esquire of the King 91%
$0.08#19510
"{4}{W}, {T}: Creatures you control get +1/+1 until end of turn. This ability costs {2} less to activate if you control a legendary creature."