Steps to reproduce the bug

1. 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.)
2. Find the card 漆黒軍の騎士 (Knight of the Ebon Legion) in your collection (デッキ (Decks) > コレクション (Collection)) by typing "漆" (the first letter of the Japanese word for "ebon") in the search box and hitting the ENTER key (after checking "Not Collected" option in the Advanced Filters if you don't have one).
3. Hover your mouse cursor over Knight of the Ebon Legion to see the last part in the text box.

Platform you’re using (PC, Steam, Mac, Android, or iOS)

PC (Windows 11 Pro 23H2 build 22631.4602)

Actual results you’re experiencing

The last part of the text box reads "<i>（ダメージによりライフは失われる。）</i>", where "<i>" and "</i>" should not be shown on the screen. Note that "（ダメージによりライフは失われる。）" is the Japanese text for "(Damage causes loss of life.)".

Expected results

The last part of the text box just reads "（ダメージによりライフは失われる。）" with no surrounding "<i>" and "</i>".

Relevant screenshots/videos

See the attachment.

Workaround

I don't know any workaround (except for playing under a locale other than Japanese :) to avoid this bug.