Caggo Corpsekiller

House Martell. Non-Loyal.
Character. Cost: 3. STR: 3.

Commander. Dothraki. Mercenary.

Interrupt: When another character is returned to a player's hand or placed in shadows, return Caggo Corpsekiller to your hand to place that character in its owner's dead pile instead.

Caggo Corpsekiller the men were calling him now, though not to his face; he was quick to anger, and that curved black sword of his was as nasty as its owner.
Stephen Patane (Midjourney)
The Spoils of War #11.

Link: Decklists

Caggo Corpsekiller
Reviews

Rules FAQ

  • A replacement effect is an effect (usually an interrupt) that replaces the resolution of a triggering condition with a different means of resolving that same triggering condition, but in such a manner that the triggering condition is still considered to occur. The word "instead" is frequently indicative of a such an effect. After all interrupts to the triggering condition have resolved and it is time to resolve the triggering condition itself, the replacement effect resolves instead. If multiple replacement effects are initiated against the same triggering condition, the most recent replacement effect is the one that is used for the resolution of the triggering condition. (See Replacement Effects.)

  • Caggo’s ability is not itself a removal effect. It only changes the final destination of the card that is about to leave play, in the same way as Ser Davos Seaworth (Core). The word “instead” is therefore just a short way of saying “instead of adding that character to hand or placing it in shadows”.

  • Placing a character in a player’s dead pile is not the same thing as that character being killed, so reactions to a character being killed cannot be triggered.

  • Caggo can interrupt any ability that specifically uses the phrase “return to hand”. This includes abilities that would return a character to hand from an out-of-play area, such as "On a Misty Morn" or Summer (Core). It does not include characters returning to hand due to Red Priest leaving play.

  • Caggo can interrupt any ability that “places” (Banished from the Light), “puts” (Brazen Beast) or “returns” (Clever Feint) a card to shadows, as long as you can establish the card is a character. When a character is marshaled into shadows during the marshaling phase, Caggo normally cannot interrupt that, but Dagmer Cleftjaw (TSoW) is one exception if he is marshaled into shadows from the dead pile.

  • Caggo can also interrupt costs (for instance, Messenger Raven or Starfall Spy). When he does, those costs are still considered to have been paid successfully, so the effects of those abilities still resolve.

  • Marshaling a character into shadows while Wardens of the East is revealed will not trigger Caggo. The character becomes revealed after the interrupt window has already closed.

  • If Caggo leaves play at the same time as another character (for instance, when chosen for The Father), you can still use his interrupt to place the other character in its owner’s dead pile.

  • If Caggo dies at the same time as Ser Davos Seaworth (Core) or a character that is being returned to hand by Spears of the Merling King, he will no longer be in play to interrupt those cards being returned to hand.

  • If two players control Caggo, they can end up in an infinite loop where the two copies of Caggo just keep interrupting one another. There is currently no official ruling about what to do in such a situation.

Odrl 1251
Just to add to the above, I have suggested a couple of potential FAQ updates to deal with infinite loops or prevent them altogether. Hopefully an update is released at some point in the not too distant future. :) — Odrl 1251