Undergrowth Champion 


Creature — Elemental
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.
Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature.
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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.
Oathsworn Knight 99%
$0.31#18953
"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."
Ugin's Conjurant 92%
$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."
Unbreathing Horde 90%
$0.38#8215
"If this creature would be dealt damage, prevent that damage and remove a +1/+1 counter from it."
Protean Hydra 83%
$4.47#6344
"If damage would be dealt to this creature, prevent that damage and remove that many +1/+1 counters from it."
Magma Pummeler 83%
$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."
Polukranos, Unchained 83%
$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."
Ironscale Hydra 83%
$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."
Rock Hydra 81%
#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."
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."
Anti-Venom, Horrifying Healer 81%
$6.18#5144
"If damage would be dealt to this card, prevent that damage and put that many +1/+1 counters on him."
High Score 80%
$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 80%
$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 80%
$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."
Caradora, Heart of Alacria 80%
$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."
Benevolent Hydra 80%
$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."
Prowling Felidar 100%
$0.22#13843
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Vinelasher Kudzu 100%
$0.35#12939
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Floral Evoker 100%
$0.30#7233
"Whenever a land you control enters, put a +1/+1 counter on this creature."
Seedship Agrarian 100%
$0.24#10968
"Whenever a land you control enters, put a +1/+1 counter on this creature."