The card Fracture have a translation Mistake.
In french it's written : Destroy target artifact, CREATURE or planeswalker.

In reality, the card can't destroy CREATURE but enchantement.

La carte affiche "détruisez l'artefact, la {créature} ou le planeswalker ciblé" mais une fois lancé le jeu demande de choisir, un artefact, un {enchantement} ou un planeswalker

Japanese [Kalain, Reclusive Painter] ( 隠棲した絵描き、カレイン ) has completely wrong text.

It says "Other creatures you control enter the battlefield with an additional +1/+1 counter on them for each mana from a Treasure spent to cast this spell."

This is FUNCTIONAL mistranslation. So it's critical. Please fix it.

Le texte de la carte Fracture (1B/1W) dit :
Détruisez un artefact, une créature ciblée ou un planeswalker ciblé. Or il est impossible de détruire une créature ciblée ou un planeswalker ciblé.

False German translation for one of the 3 Dungeons: Tomb of Annihilation (Grabmal der Vernichtung)

In German, the "Oubliette" ("Katakomben") says that the player needs to "discard a card, sacrifice a creature, an artifact, OR a land" (instead of AND). Big, big mistake which has cost me a game in limited. Very annoying.

Wrong card name.

Japanese [Dragon Turtle] should be "竜亀", not "ドラゴン・海亀".

(Type line is correct. But card name is wrong.)

The Japanese translation for "Nylea's Intervention" is wrong.
The Japanese text says, "Search your library for up to X plainswalker cards, reveal them, put them into your hand, then shuffle.", instead of, "X land cards."
The correct text is only displayed only when the spell is cast, and the wrong text is displayed otherwise.
Please, fix it.
BTW, why can't I upload the screenshot (size < 5MB)?

「うろつくダイア・ウルフ」の起動能力に赤マナが必要と信じて攻撃して返り討ちに遭いました。
テキストミスが発覚して半日以上放置されている理由はなぜでしょうか。
リリースされている以上、即時対応すべきかアリーナ起動TOP画面で注意喚起を行うべきではないでしょうか。

Hi,

The French version of Tomb of Annihilation as an error in the text of the Veils of Fear room. It says "Each opponent (...)" instead of "Each player (...)" (FR: "Chaque adversaire" instead of the correct "Chaque joueur").

I nearly lost a game due to that... Can you please fix it?
Also: last time an translation error was present in Arena it was also present in paper Magic, so maybe it's not on you and you can only wait but I hope it's not the case. ;)

Cheers.

惑乱スプライト/催眠の輝き　のテキストに誤植があります。
誤「マナ総量が3以上の」
正「マナ総量が3以下の」
実際に、3マナ以上の呪文を対象にとれませんでした。

A card text of "Narfi, Betrayer King" is indicated by mistake in a Japanese edition.
It's indicated so that correction may enter to all creatures.
I choose this creature and have been defeated in a draft.

惑乱スプライト/Hypnotic Sprite

日本語版/Japanese

×3マナ以上（more 3mana)
○3マナ以下(less 3 mana)

In Japanese, Nightmare (Creature Type) is ナイトメア, and Nightmare (Card name) is 夢魔 . Some Nightmare creatures are written 夢魔 for Creature Type.
This bug hinder search thees cards.

The text is not fulffiled correctly when opening the card. The card had equiped the Leather Armor artifact.

My Friend’s list shows as 0 online at all times. I cannot even see my friends at all. Furthermore, I cannot direct challenge anyone. The play button remains greyed out even when the name and number are input correctly.

This is on iOS.

L’effet produit n’est pas le même que l’effet annoncé. La carte cible les enchantements à la place des créatures.
La carte s’appelle ”Fracture” en français.

惑乱のスプライトの誤字はさすがにやばすぎでしょ。
これ、日本法律上、ワンチャン「優良誤認」に当てはまりますよ？
すぐ直してください。

「以下」が「以上」になってますよ？