Oathsworn Knight 


Creature — Human Knight
This creature enters with four +1/+1 counters on it.
This creature attacks each combat if able.
If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from it.
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.
Undergrowth Champion 99%
$0.58#8082
"If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from this creature."
Unbreathing Horde 91%
$0.38#8215
"If this creature would be dealt damage, prevent that damage and remove a +1/+1 counter from it."
+1 more matching line
Ugin's Conjurant 91%
$0.14#11378
"If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from this creature."
+1 more matching line
Polukranos, Unchained 86%
$0.78#11497
"If damage would be dealt to this card while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from it."
Magma Pummeler 84%
$0.23#19497
"If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from it. When one or more counters are removed from this creature this way, it deals that much damage to any target."
+1 more matching line
Protean Hydra 84%
$4.47#6344
"If damage would be dealt to this creature, prevent that damage and remove that many +1/+1 counters from it."
+1 more matching line
Anti-Venom, Horrifying Healer 83%
$6.18#5144
"If damage would be dealt to this card, prevent that damage and put that many +1/+1 counters on him."
Rock Hydra 82%
#27263
"For each 1 damage that would be dealt to this creature, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage."
+1 more matching line
High Score 81%
$1.15#5785
"If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead."
Hardened Scales 81%
$1.79#186
"If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead."
Michelangelo, Weirdness to 11 81%
$3.26#5838
"If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead."
Benevolent Hydra 81%
$0.99#3026
"If one or more +1/+1 counters would be put on another creature you control, that many plus one +1/+1 counters are put on it instead."
+1 more matching line
Caradora, Heart of Alacria 81%
$0.22#11808
"If one or more +1/+1 counters would be put on a creature or Vehicle you control, that many plus one +1/+1 counters are put on it instead."
Conclave Mentor 81%
$0.67#2296
"If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on that creature instead."
Jared Carthalion, True Heir 80%
$0.27#13978
"If damage would be dealt to this card while you're the monarch, prevent that damage and put that many +1/+1 counters on it."
Ironscale Hydra 80%
$1.23#8715
"If a creature would deal combat damage to this creature, prevent that damage and put a +1/+1 counter on this creature."
Workhorse 100%
$2.65#13041
"This creature enters with four +1/+1 counters on it."
+1 more matching line