Splinter, the Mentor 
Legendary Creature — Mutant Ninja Rat
$0.53 #8439 0.37 0.6 years
Menace
Whenever Splinter or another nontoken creature you control leaves the battlefield, create a Mutagen token.
Partner—Character select (You can have two commanders if both have this ability.)
Click a line or tag to filter
Cards similar to Splinter, the Mentor 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.
Donatello, the Brains94%
$0.51↓#69270.48↑0.6 years
"Partner—Character select"
The Ooze87%
$3.99↑#4121↑0.440.6 years
"Whenever a creature you control with a +1/+1 counter on it leaves the battlefield, create a Mutagen token for each +1/+1 counter on it."
Michelangelo, the Heart82%
$0.93↑#81610.64↑0.6 years
"Partner—Character select"
Mona Lisa, Ever Adaptable82%
$3.27↑#13415↓0.22↓0.6 years
"Whenever a player casts a creature spell, you create a Mutagen token."
Ninth Bridge Patrol80%
$0.14↓#20603↓0.19↓10.1 years↑
"Whenever another creature you control leaves the battlefield, put a +1/+1 counter on this creature."
Flaming Fist Officer80%
$0.22↓#20681↓0.06↓4.4 years↑
"Whenever another creature you control leaves the battlefield, put a +1/+1 counter on this creature."
Raphael, the Muscle80%
$0.65↑#73190.59↑0.6 years
"Partner—Character select"
+1 more matching line
Joel, Resolute Survivor79%
$4.34↑#22112↓0.301.0 years
"Menace"
Deep Goblin Skulltaker78%
$0.15↓#19093↓0.00↓2.9 years↑
"Menace"
Iron Bully78%
$0.06↓#20774↓0.06↓7.5 years↑
"Menace"
Stormblood Berserker78%
$0.06↓#24245↓0.00↓15.3 years↑
"Menace"
Sophina, Spearsage Deserter78%
$0.37↓#15161↓0.475.0 years↑
"Menace"
Tokka & Rahzar, Unsupervised75%
$0.30↓#11705↓0.18↓0.6 years
"Whenever another nontoken creature you control leaves the battlefield, put a +1/+1 counter on this card and create a Treasure token. This ability triggers only once each turn."
Genghis Frog74%
$0.24↓#14977↓0.360.6 years
"Whenever this card or another Mutant you control enters, create a Mutagen token."
Three Tree Scribe74%
$0.27↓#87000.19↓2.2 years↑
"Whenever this creature or another creature you control leaves the battlefield without dying, put a +1/+1 counter on target creature you control."
Silvar, Devourer of the Free74%
$0.42↓#14030↓0.00↓6.5 years↑
"Menace"
Imperial Cosmographer73%
$0.21↓#30096↓0.26↓0.3 years
"Whenever another creature you control leaves the battlefield without dying, put two +1/+1 counters on this creature."
Safana, Calimport Cutthroat73%
$0.11↓#11015↓0.05↓4.4 years↑
"Menace"
Casey Jones, Back Alley Brute72%
$0.31↓#71790.320.6 years
"Menace"
Leonardo, the Balance72%
$0.58↑#79560.62↑0.6 years
"Partner—Character select"