Runaway Steam-Kin 
Creature — Elemental
$1.76 #1683 0.32 8.0 years
Whenever you cast a red spell, if this creature has fewer than three +1/+1 counters on it, put a +1/+1 counter on this creature.
Remove three +1/+1 counters from this creature: Add .
.Click a line or tag to filter
Cards similar to Runaway Steam-Kin 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.
Workhorse95%
$3.81↑#13394↓0.05↓28.3 years↑
"Remove a +1/+1 counter from this creature: Add 
."
."
Ramos, Dragon Engine86%
$0.39↓#3165↓0.339.2 years↑
"Remove five +1/+1 counters from this card: Add 
. Activate only once each turn."
. Activate only once each turn."+1 more matching line
Brigone, Soldier of Meletis83%
$1.66↓#8778↓0.00↓1.9 years↓
"Whenever you cast a spell that targets this card, put a +1/+1 counter on this card."
Sage of Hours82%
$10.34↑#7793↓0.97↑12.5 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on it."
Cryptic Trilobite81%
$1.58↓#6916↓0.17↓6.5 years↓
"Remove a +1/+1 counter from this creature: Add . Spend this mana only to activate abilities."
. Spend this mana only to activate abilities."+1 more matching line
Haruspex81%
$0.39↓#12199↓0.07↓4.0 years↓
"
, Remove X +1/+1 counters from this creature: Add X mana of any one color."
, Remove X +1/+1 counters from this creature: Add X mana of any one color."
Crystalline Crawler80%
$0.33↓#2908↓0.259.9 years↑
"Remove a +1/+1 counter from this creature: Add one mana of any color."
The Astonishing Ant-Man80%
$0.28↓#11444↓0.300.3 years↓
"Whenever you draw a card, put a +1/+1 counter on this card."
Spike Drone80%
$0.18↓#26343↓0.07↓29.0 years↑
"This creature enters with a +1/+1 counter on it."
Salt Road Quartermasters78%
$0.05↓#29352↓0.3111.6 years↑
"This creature enters with two +1/+1 counters on it."
Spike Worker78%
$0.11↓#27921↓0.3328.6 years↑
"This creature enters with two +1/+1 counters on it."
Quirion Dryad76%
$0.09↓#25294↓0.13↓25.7 years↑
"Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on this creature."
Ulasht, the Hate Seed76%
$0.26↓#13135↓0.07↓20.7 years↑
"this card enters with a +1/+1 counter on it for each other red creature you control and a +1/+1 counter on it for each other green creature you control."
Mikaeus, the Lunarch76%
$0.49↓#20070.2615.2 years↑
"this card enters with X +1/+1 counters on it."
Spike Feeder76%
$1.52↓#9292↓0.16↓28.6 years↑
"This creature enters with two +1/+1 counters on it."
Guiding Hydra76%
$0.43↓#16361↓0.16↓0.0 years↓
"This creature enters with X +1/+1 counters on it."
Benevolent Hydra74%
$0.74↓#2938↓0.313.9 years↓
"This creature enters with X +1/+1 counters on it."
Spike Hatcher74%
$0.49↓#29165↓0.3928.3 years↑
"This creature enters with six +1/+1 counters on it."
Festercreep74%
$0.08↓#24694↓0.12↓18.7 years↑
"This creature enters with a +1/+1 counter on it."
Mage Tower Referee74%
$0.11↓#23626↓0.01↓0.5 years↓
"Whenever you cast a multicolored spell, put a +1/+1 counter on this creature."