똬리를 튼 추적자 {1}{G}

생물 — 뱀 닌자

인술 {1}{G} ({1}{G}, 당신이 조종하는 공격 중인 생물 중 방어 당하지 않은 생물 한 개를 손으로 되돌린다: 당신의 손에서 이 카드를 탭되어 공격 중인 상태로 전장에 놓는다.)

똬리를 튼 추적자가 플레이어에게 전투피해를 입힐 때마다, 당신이 조종하며 +1/+1 카운터를 가지지 않은 생물을 목표로 정한다. 그 생물에 +1/+1 카운터 한 개를 올려놓는다.

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Only the English version of a Magic card receives Oracle updates and errata. View this card in English. (Scryfall note)
The target of Coiling Stalker's triggered ability will become an illegal target if a +1/+1 counter is placed on it before the triggered ability resolves. (2022-02-18)
The ninjutsu ability can be activated only after blockers have been declared. Before then, attacking creatures are neither blocked nor unblocked. (2022-02-18)
As you activate a ninjutsu ability, you reveal the Ninja card in your hand and return the attacking creature. The Ninja card stays revealed and isn't put onto the battlefield until the ability resolves. If it leaves your hand before then, it won't enter the battlefield at all. (2022-02-18)
The creature with ninjutsu enters the battlefield attacking the same player or planeswalker that the returned creature was attacking. This is a rule specific to ninjutsu; in other cases, when a creature is put onto the battlefield attacking, that creature's controller chooses which player or planeswalker it's attacking. (2022-02-18)

Although the Ninja is attacking, it was never declared as an attacking creature (for purposes of abilities that trigger whenever a creature attacks, for example). (2022-02-18)
The ninjutsu ability can be activated during the declare blockers step, combat damage step, or end of combat step. In most cases (see below), if you wait until the combatdamage step or end of combat step, it will be after combat damage has been dealt, so the Ninja won't deal combat damage. (2022-02-18)
If a creature in combat has first strike or double strike, you can activate the ninjutsu ability during the first-strike combat damage step. The Ninja will deal combat damage during the regular combat damage step, even if it has first strike. (2022-02-18)
Puff of smoke not included. (2022-02-18)