Japanese text for delayed trigger from Decayed given by Rot-Curse Rakshasa is broken
Rot-Curse Rakshasa's Renew ability can give other creatures Decayed. When a creature that is given Decayed this way attacks, Decayed's delayed trigger is put on the stack as the end of combat step begins, and that creature is sacrificed. That's fine.
If you are playing MTG Arena under Japanese locale, and the particular delayed trigger is put on the stack, it shows a broken text that reads "#N@ranslationNeeded", where "@" is actually a tap symbol, rather than "Sacrifice it at end of combat."
Note that I observe this bug only for the Delayed given by Rot-Curse Rakshasa. The delayed trigger from Decayed that is printed on a creature shows "腐乱" ("Decayed") as its text, and that's OK.
Steps to reproduce the bug
- Run MTG Arena under the Jaspanese Locale (Adjust Options > Graphics > Locale > 日本語 (Japanese). You may need to exit and restart the game for the change to take effect.)
- Play a deck containing Rot-Curse Rakshasa.
- Somehow put your Rot-Curse Rakshasa in your graveyard, e.g., by casting and attacking with it.
- Activate its Renew ability, targeting a creature, to give it Decayed.
- Let the creature that got Decayed attack.
- Wait until Decayed's delayed trigger is put on the stack at the beginning of the end of combat step.
Platform
PC (Windows 11 Pro 24H2 build 26100.3915)
Actual results
Japanese text for the Decayed's delayed trigger reads "#N@ranslationNeeded", where "@" is actually a tap symbol.
Expected results
Japanese text for the Decayed's delayed trigger should be a Japanese translation of "Sacrifice it at end of combat.", e.g., "戦闘終了時に、それを生け贄に捧げる。".
Relevant screenshots/videos
See attached files.
Note that the video records the following actions:
- In my turn, I attacked with my Rot-Curse Rakshasa (腐れ呪いのラクシャーサ).
- Its Decayed triggered, and its delayed trigger triggered as the end of combat step began, showing "腐乱" ("Decayed") as its text. The Rakshasa is put in my graveyard.
- I activated the Rakshasa's Renew ability, choosing X=1 and targeting my opponent's Krovikan Scoundrel (クロヴの悪漢), to give it Decayed.
- In my opponent's turn, they cast a (unrelated) creature and then attacked with Krovikan Scoundrel.
- As the end of combat step began, Decayed's delayed trigger was put on the stack, showing the problematic text (and sent the Scoundrel to graveyard).
Workaround
None known.

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Alissa#07491 commented
I observed the same (or similar, at least) issue for the delayed trigger from Mobilize 2 given by Waystone's Guidance.
The attached video shows the following actions:
1. I cast Reckless Lackey (無謀なる従僕).
2. My Waystone's Guidance (道石の導き) on the battlefield gave it Mobilize 2.
3. Then, I attacked with the Goblin.
4. Mobilize on it triggered, creating two tokens.
5. (My opponent blocked one of them using Malakir Cullblade (マラキールの選刃), making both the blocking and blocked creatures destroyed and causing Cullblade's triggered ability to be triggered and resolved, which are all unrelated to the bug in question.)
6. I (and my opponent, too) passed priority to begin the end step.
7. The delayed trigger from Mobilize on my Lackey is put on the stack, showing a broken text.