Thunderblust 



Creature — Elemental
Haste
This creature has trample as long as it has a -1/-1 counter on it.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
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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.
Quagmire Lamprey 83%
$0.20#30057
"Whenever this creature becomes blocked by a creature, put a -1/-1 counter on that creature."
Phyrexian Hydra 82%
$4.55#12616
"If damage would be dealt to this creature, prevent that damage. Put a -1/-1 counter on this creature for each 1 damage prevented this way."
Lethal Sting 82%
$0.25#18085
"As an additional cost to cast this spell, put a -1/-1 counter on a creature you control."
Scarscale Ritual 82%
$0.13#24100
"As an additional cost to cast this spell, put a -1/-1 counter on a creature you control."
Lichenthrope 82%
$0.60#28461
"If damage would be dealt to this creature, put that many -1/-1 counters on it instead."
Obelisk Spider 82%
$2.79#4921
"Whenever this creature deals combat damage to a creature, put a -1/-1 counter on that creature."
Moonshadow 80%
$11.52#8935
"Whenever one or more permanent cards are put into your graveyard from anywhere while this creature has a -1/-1 counter on it, remove a -1/-1 counter from this creature."
Magmaroth 80%
$0.10#29030
"Whenever you cast a noncreature spell, remove a -1/-1 counter from this creature."