When Yasuo, Remorseful attacks a battlefield with a unit controlled by Nine-Tailed Fox's leader, in what order do their triggered abilities enter the chain?

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Accepted Answer

When Yasuo, Remorseful attacks a battlefield containing a unit controlled by Nine‑Tailed Fox's leader, the attack triggered abilities controlled by the attacking player (Yasuo's controller) are placed on the Combat Chain first. After that, any non‑Defender players in turn order place their pending triggered abilities, and finally the Defending player (the controller of Nine‑Tailed Fox's leader) places theirs [459.2.d.1].

The attacking player (controller of Yasuo, Remorseful) places their triggered abilities on the Combat Chain first (they have Focus) [459.2.c.2] [459.2.d.1]. Then any non‑Defender players (if any) place pending triggered abilities in turn order, and lastly the Defending player (controller of Nine‑Tailed Fox's leader) places theirs [459.2.d.1].

Establish Attacker and Defender for the Combat Showdown; the Attacker gains Focus [459.2.c.2]. Because establishing Attacker/Defender caused triggered abilities to become Pending, add those triggered abilities to the Combat Chain in this order: the Attacking player places their pending triggered abilities first, then all non-Defender players in Turn Order, then the Defending player places theirs [459.2.d.1]. Resolve the Chain as normal after placement (the Combat Showdown proceeds with any plays on the Chain) [459.2.f].

If a reacting effect gains control of Yasuo, Remorseful after his attack trigger is placed but before it resolves, the wording 'enemy'/'friendly' referenced by the triggered ability is taken from the triggered ability itself and is checked on execution; changing control of Yasuo does not retroactively change that reference [359.3.f.4]. If Yasuo, Remorseful is moved away from the battlefield before his attack trigger resolves, instructions that reference 'here' may mistarget because information like 'here' is checked on execution of the instruction [359.3.f.2]. If multiple pending triggers belong to the same player at the same time, the provided rule excerpt does not supply the explicit intra‑player ordering mechanism; the ruling above assumes the controller orders their own pending triggered abilities (standard practice), but this is an assumption due to missing explicit text in the provided context.

Under the Combat Showdown step rules, when Attacker and Defender are established any triggered abilities that become Pending are added to the Combat Chain in a specific placement order. The Attacker gains Focus and the Attacking player places Pending triggered abilities on the Chain first, then any non-Defender players in Turn Order, and finally the Defending player places theirs [459.2.c.2] [459.2.d.1]. Therefore, when Yasuo, Remorseful attacks a battlefield that contains a unit controlled by Nine‑Tailed Fox's leader, the attack trigger(s) controlled by the attacking player (Yasuo's controller) are placed on the Combat Chain before the defending player's trigger(s). Note that triggers can be reacted to after they are placed on the Chain; examples in the rules show control‑changing effects (like a hidden Hostile Takeover) can occur in reaction. However, information such as whether a target is an “enemy” is referenced from the triggered ability itself and is checked on execution, so gaining control of Yasuo, Remorseful after the trigger is placed will not retroactively change the trigger’s internal references—but moving Yasuo off the battlefield could make a 'here' reference invalid at execution [359.3.f.4] [359.3.f.2]. Finally, if there are multiple pending triggers for the same player, the provided context does not include explicit text for ordering those triggers, so this ruling assumes the player arranges their own pending triggered abilities when placing them (standard practice).