Core Prowler MBS

Card

id	51854
artist	Dave Allsop
artistIds	99b8310a-4fd6-4ded-8ab7-3b5185821cbe
asciiName
attractionLights
availability	mtgo, paper
boosterTypes	default
borderColor	black
colorIdentity
colorIndicator
colors
defense
duelDeck
edhrecRank	7468
edhrecSaltiness	0.4
faceConvertedManaCost
faceFlavorName
faceManaValue
faceName
finishes	nonfoil, foil
flavorName
flavorText
frameEffects
frameVersion	2003
hand
hasAlternativeDeckLimit
hasContentWarning
hasFoil	1
hasNonFoil	1
isAlternative
isFullArt
isFunny
isGameChanger
isOnlineOnly
isOversized
isPromo
isRebalanced
isReprint
isReserved
isStarter
isStorySpotlight
isTextless
isTimeshifted
keywords	Infect, Proliferate
language	English
layout	normal
leadershipSkills
life
loyalty
manaCost	{4}
manaValue	4
name	Core Prowler
number	103
originalPrintings
originalReleaseDate
originalText	Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When Core Prowler is put into a graveyard from the battlefield, proliferate. (You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there.)
otherFaceIds
power	2
printings	MBS
promoTypes
rarity	uncommon
rebalancedPrintings
relatedCards
securityStamp
setCode	MBS
side
signature
sourceProducts	{'foil': ['4d8c8f8c-57c6-5b30-be12-ddea36c91084', 'ba83ed00-67f1-523d-94be-831d0dd950ad'], 'nonfoil': ['16df58bd-99a1-5f57-a66e-0de5dc360769', '33da027f-aa14-50c5-bd5a-da95d942a915', '3ddf5d74-e280-537d-b596-fec998fc9d79', 'ba83ed00-67f1-523d-94be-831d0dd950ad', 'c6a213b9-4c7b-5865-b568-26cdabcb9694']}
subsets
subtypes	Phyrexian, Horror
supertypes
text	Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When this creature dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
toughness	2
type	Artifact Creature — Phyrexian Horror
types	Artifact, Creature
uuid	f9081998-9a10-5399-87b8-db1fba11d8cc
variations
watermark	phyrexian
setName	Mirrodin Besieged

Identifiers

id	51854
cardKingdomEtchedId
cardKingdomFoilId	137268
cardKingdomId	137111
cardsphereFoilId	31111
cardsphereId	31112
deckboxId	18060
mcmId	245363
mcmMetaId	202417
mtgArenaId
mtgjsonFoilVersionId
mtgjsonNonFoilVersionId
mtgjsonV4Id	26fdd26a-98ad-5815-ba0d-222db80c32d6
mtgoFoilId	39482
mtgoId	39481
multiverseId	213822
scryfallCardBackId	0aeebaf5-8c7d-4636-9e82-8c27447861f7
scryfallId	05414ba7-0f59-4c73-931c-e599d149d3ba
scryfallIllustrationId	fbdc1293-6183-4c8b-8e8b-315f72ba0f4c
scryfallOracleId	0ad44727-41c3-471c-b038-1bf43c5f296a
tcgplayerEtchedProductId
tcgplayerProductId	39092
uuid	f9081998-9a10-5399-87b8-db1fba11d8cc

Legalities

id	51854
alchemy
brawl
commander	Legal
duel	Legal
future
gladiator
historic
legacy	Legal
modern	Legal
oathbreaker	Legal
oldschool
pauper
paupercommander
penny
pioneer
predh	Legal
premodern
standard
standardbrawl
timeless
uuid	f9081998-9a10-5399-87b8-db1fba11d8cc
vintage	Legal

Purchase URLs

id	51854
cardKingdom	https://mtgjson.com/links/055e1320d6af9f87
cardKingdomEtched
cardKingdomFoil	https://mtgjson.com/links/1facd6643cd90fb4
cardmarket	https://mtgjson.com/links/245b36de49675243
tcgplayer	https://mtgjson.com/links/29928f398171fafd
tcgplayerEtched
uuid	f9081998-9a10-5399-87b8-db1fba11d8cc

Foreign Data (per language)

language	name	type	text	multiverseId
Chinese Simplified	核心游掠者	神器生物～惊惧兽	侵染（此生物会以-1/-1指示物的方式对生物造成伤害，并以中毒指示物的方式对牌手造成伤害。）当核心游掠者从战场进入坟墓场时，增殖。（你选择任意数量其上有指示物的永久物和／或牌手，然后在其上放置一个它已有之类别的指示物。）	241403
Chinese Traditional	核心遊掠者	神器生物～驚懼獸	侵染（此生物會以-1/-1指示物的方式對生物造成傷害，並以中毒指示物的方式對玩家造成傷害。）當核心遊掠者從戰場進入墳墓場時，增殖。（你選擇任意數量其上有指示物的永久物和／或玩家，然後在其上放置一個它已有之類別的指示物。）	240938
French	Rôdeur du Noyau	Créature-artefact : horreur	Infection (Cette créature inflige des blessures aux créatures sous la forme de marqueurs -1/-1 et aux joueurs sous la forme de marqueurs « poison ».) Quand le Rôdeur du Noyau est mis dans un cimetière depuis le champ de bataille, proliférez. (Vous choisissez n'importe quel nombre de permanents et/ou de joueurs avec des marqueurs sur eux, puis vous leur donnez à chacun un autre marqueur d'une sorte déjà présente.)	240473
German	Kernstrolcher	Artefaktkreatur — Schrecken	Infizieren (Diese Kreatur fügt Schaden in Form von -1/-1-Marken für Kreaturen und von Giftmarken für Spieler zu.) Wenn der Kernstrolcher aus dem Spiel auf einen Friedhof gelegt wird, führe Wucherung durch. (Du bestimmst eine beliebige Anzahl an bleibenden Karten und/oder Spielern, auf denen Marken liegen, und gibst ihnen dann eine weitere Marke einer Sorte, die dort bereits liegt.)	240628
Italian	Predone del Nucleo	Creatura Artefatto — Orrore	Infettare (Questa creatura infligge danno alle creature sotto forma di segnalini -1/-1 e ai giocatori sotto forma di segnalini veleno.) Quando il Predone del Nucleo viene messo in un cimitero dal campo di battaglia, proliferare. (Scegli un qualsiasi numero di permanenti e/o giocatori con segnalini su di essi, poi metti su ognuno un altro segnalino di un tipo già presente.)	241713
Japanese	核をうろつくもの	アーティファクト・クリーチャー — ホラー	感染（このクリーチャーは、クリーチャーに－１/－１カウンターの形でダメージを与え、プレイヤーに毒カウンターの形でダメージを与える。）核をうろつくものが戦場からいずれかの墓地に置かれたとき、増殖を行う。（あなたはカウンターの置かれているパーマネントやプレイヤーを望む数だけ選び、その後それぞれに、その上にすでに置かれているカウンターのうち１種類を１個置く。）	253993
Portuguese (Brazil)	Espreitador do Núcleo	Criatura Artefato — Horror	Infectar (Esta criatura causa dano a criaturas na forma de marcadores -1/-1 e a jogadores na forma de marcadores de veneno.) Quando Espreitador do Núcleo for colocado num cemitério vindo do campo de batalha, prolifere. (Você escolhe um número qualquer de permanentes e/ou jogadores com marcadores sobre eles e depois dá a cada um outro marcador de um tipo que eles já tenham.)	241558
Russian	Мародер Ядра	Артефактное Существо — Ужас	Инфекция (Это существо наносит повреждения существам в виде жетонов -1/-1, а игрокам в виде жетонов яда.) Когда Мародер Ядра попадает с поля битвы на кладбище, используйте Распространение. (Вы выбираете любое количество перманентов и (или) игроков, на которых есть жетоны, затем даете каждому из них еще один жетон того типа, который у него уже имеется.)	241093
Spanish	Rondador del núcleo	Criatura artefacto — Horror	Infectar. (Esta criatura hace daño a las criaturas en forma de contadores -1/-1 y a los jugadores en forma de contadores de veneno.) Cuando el Rondador del núcleo vaya a un cementerio desde el campo de batalla, prolifera. (Eliges cualquier número de permanentes y/o jugadores con contadores sobre ellos y pones sobre cada uno un contador de un tipo que ya tenga.)	240783

Rulings

date	text
2023-02-04	An ability that triggers "Whenever you proliferate" triggers even if you chose no permanents or players while doing so.
2023-02-04	If a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.
2023-02-04	If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.
2023-02-04	Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.
2023-02-04	To proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.
2023-02-04	You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to. Since "any number" includes zero, you don't have to choose any permanents at all, and you don't have to choose any players at all.