Boros Reckoner 
Creature — Minotaur Wizard
$0.28 #6342 0.17 13.6 years
Whenever this creature is dealt damage, it deals that much damage to any target.
: This creature gains first strike until end of turn.Click a line or tag to filter
Cards similar to Boros Reckoner 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.
Spitemare98%
$0.33↑#12410↓0.73↑18.1 years↑
"Whenever this creature is dealt damage, it deals that much damage to any target."
Black Panther, Most Dangerous94%
$0.37↑#18833↓0.00↓0.2 years↓
"Whenever this card is dealt damage, he deals that much damage to any other target."
Blazing Sunsteel93%
$15.51↑#64740.57↑5.8 years↓
"Whenever equipped creature is dealt damage, it deals that much damage to any target."
Wrathful Red Dragon90%
$6.44↑#2260↑0.44↑4.2 years↓
"Whenever a Dragon you control is dealt damage, it deals that much damage to any target that isn't a Dragon."
Ill-Tempered Loner // Howlpack Avenger89%
$0.41↑#71850.254.8 years↓
"Whenever this creature is dealt damage, it deals that much damage to any target."
+1 more matching line
Mogg Maniac88%
$0.35↑#11772↓0.44↑28.5 years↑
"Whenever this creature is dealt damage, it deals that much damage to target opponent or planeswalker."
Brash Taunter87%
$1.61↑#790↑0.49↑6.2 years↓
"Whenever this creature is dealt damage, it deals that much damage to target opponent."
Screaming Nemesis86%
$6.29↑#3741↑0.90↑1.9 years↓
"Whenever this creature is dealt damage, it deals that much damage to any other target. If a player is dealt damage this way, they can't gain life for the rest of the game."
Wrathful Raptors86%
$5.11↑#2629↑0.32↑2.8 years↓
"Whenever a Dinosaur you control is dealt damage, it deals that much damage to any target that isn't a Dinosaur."
Tephraderm86%
$0.24↓#27989↓0.31↑23.9 years↑
"Whenever a creature deals damage to this creature, this creature deals that much damage to that creature."
Titanium Golem86%
$0.08↓#31752↓0.00↓22.9 years↑
"
: This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
Wall of Souls85%
$2.06↑#16164↓0.29↑28.5 years↑
"Whenever this creature is dealt combat damage, it deals that much damage to target opponent or planeswalker."
Saberclaw Golem85%
$0.07↓#31145↓0.00↓15.9 years↑
"
: This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
War-Spike Changeling85%
$0.20↓#19399↓0.2518.6 years↑
": This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
Kessig Wolf84%
$0.16↓#27104↓0.00↓14.9 years↑
": This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
Noble Panther84%
$0.31↑#29362↓0.2525.9 years↑
": This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
Lightning Wolf84%
$0.15↓#24293↓0.00↓4.8 years↓
": This creature gains first strike until end of turn. Activate only as a sorcery."
: This creature gains first strike until end of turn. Activate only as a sorcery."
Moorland Inquisitor84%
$0.03↓#29850↓0.00↓14.3 years
"
: This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
Boreal Griffin84%
$0.17↓#25988↓0.2220.1 years↑
"
: This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."
Emerald Dragonfly84%
$0.18↓#27266↓0.2232.3 years↑
"
: This creature gains first strike until end of turn."
: This creature gains first strike until end of turn."