Read Slay the Spire 2 in Japanese: the opening, screen by screen

アイアンクラッド族ぞく、最後さいごの兵士へいし。己おのれが意志いしに反はんし、剣けんと炎ほのおで敵てきを粉砕ふんさいする

"The Ironclad clan, its last soldier — against his own will, he crushes his enemies with sword and flame."

lit. "Ironclad clan, last soldier. Against his own will, with sword and flame, [he] crushes the enemy."

• アイアンクラッド — Ironclad. Katakana is a decoder, not a wall: sound it out and it's just the English name.
• 族 (ぞく) — clan, tribe. Tacked onto a name to mean "the ~ people" — same 族 as 家族 (family).
• 粉砕する (ふんさいする) — to smash, to pulverize. 粉 (powder) + 砕 (break) — literally "break into powder". Flavor text goes hard; the card text won't.

Story flavor text is dense and archaic-adjacent — you don't need to fully parse it to play. It's the one narrative sentence in an otherwise mechanical UI.

戦闘せんとう終了しゅうりょう時じ、HPを6回復かいふくする

"At the end of combat, restore 6 HP."

lit. "[At the] time [of] combat-end, restore 6 [of] HP."

• 終了 (しゅうりょう) — end, conclusion (N2). You'll see this constantly — ターン終了 (end turn) later reuses the exact same word.
• 回復する (かいふくする) — to recover, to heal (N3). HP回復 is the single most common healing phrase in every JP game, not just this one.

〜時、〜する — 時 after a noun or verb phrase means "at the time of ~". Nearly every card and relic in this game uses this shape to describe a trigger.

敵てきと宝箱たからばこから得えられるゴールドが25%減少げんしょうする

"Gold gained from enemies and chests is reduced by 25%."

lit. "Gold that-is-gained from enemy and treasure-chest, by 25% decreases."

• 減少する (げんしょうする) — to decrease, to diminish (N1). The bad-news counterpart to 回復する above — modifiers that hurt you use this.
• 宝箱 (たからばこ) — treasure chest. 宝 (treasure) + 箱 (box) — you'll see this exact icon on the map soon.

得られる is your kit verb 得る + られる — callback: the same verb in its "can be gained / is gained" form. Same verb, different shape.

私わたしが……お前まえを……連つれ戻もどした……

"...I... ...brought you... ...back..."

lit. "...I [subject]... ...you [object]... ...brought-back..."

• 私 (わたし) — I, me (N5). Neow speaks in fragments too — this is the only pure story line in the whole run.
• お前 (おまえ) — "you," rough and familiar (N3). Blunter than あなた — a god talking down to a mortal, not politeness.
• 連れ戻す (つれもどす) — to bring back. 連れる (bring a person along) + 戻す (return something) — two verbs you can split apart and reuse separately.

私が…お前を…連れ戻した — subject, object, verb, each isolated by pauses. The pauses hand you the sentence pre-diagrammed — that's all Japanese word order is.

ポーションのスロットを1枠わく追加ついかし、ランダムなポーションを2個こ獲得かくとくする
ネオーの怒いかりを1枚まいデッキに追加ついかする
ランダムなレリックを2個こ入手にゅうしゅする。さらに、ストライク1枚まいと防御ぼうぎょ1枚まいをデッキに加くわえる

"Add 1 potion slot and gain 2 random potions. / Add 1 Neow's Wrath to your deck. / Obtain 2 random relics; also add 1 Strike and 1 Defend to your deck."

• 追加する (ついかする) — to add (N2). The 得る family keeps growing — every reward screen uses one of these four verbs.
• 獲得する (かくとくする) — to obtain, to acquire (N1). A slightly more formal "get" than 得る — same meaning, reward-screen register.
• 入手する (にゅうしゅする) — to obtain, to come into possession of (N1). 入る (enter) + 手 (hand) — "comes into your hand", another 得る synonym.
• 加える (くわえる) — to add (N3). Interchangeable with 追加する here — all four are just flavors of "you get this".

Counters: 1枠わく for slots, 2個こ for round or generic things, 1枚まい for flat things like cards. Just recognize the pattern — number + counter — you don't need to memorize them all today.

戦闘せんとう開始かいし　プレイヤーのターン　敵てきのターン

"Combat Start / Player's Turn / Enemy's Turn"

• 戦闘開始 (せんとうかいし) — combat start. 戦闘 (combat) + 開始 (begin) — the banner that opens every fight, always this exact compound.
• ターン — turn. Straight katakana loan — プレイヤーのターン / 敵のターン is the whole turn-order UI.

このボタンを押おすと、あなたのターンが終了しゅうりょうする。手札てふだをすべて捨すて、敵てきのターンになる。その後ご、カードを5枚まい引ひいて、再びあなたのターンになる

"Pressing this button ends your turn. You discard your whole hand and it becomes the enemy's turn. Afterward, you draw 5 cards and it's your turn again."

• 手札 (てふだ) — your hand of cards. 手 (hand) + 札 (card/tag) — the word for your hand in every card game, not just this one.
• 捨てる (すてる) — to discard, to throw away (N4). The exact verb you'd use for taking out the trash — same word, card game context.
• 引く (ひく) — to draw, to pull (N5). "Draw a card" is 引く everywhere — くじを引く (draw a lottery ticket) uses the same word.

押すと — と after a verb means the second clause follows automatically: "press it, and" — A causes B, no choice involved. A different flavor of trigger than 〜時 on the relic.

ストライク　6ダメージを与あたえる

"Strike — Deal 6 damage."

• ストライク — Strike (card name). The most basic attack card in the game — you'll see this exact template on every attack.
• アタック — Attack (the card-type tag under the name). Katakana loan, same word as English.

[数字] + [名詞] + を + [動詞] — number + noun + を + verb is the entire grammar of every card in this game. 6ダメージを与える, 5ブロックを得る, 弱体2を付与する: same shape, different number, noun, verb.

防御ぼうぎょ　5ブロックを得える。次つぎのターンまで、受うけるダメージを防ふせぐ

"防御 (lit. "defense") — Gain 5 Block. Prevents damage taken until your next turn."

• 防ぐ (ふせぐ) — to prevent, to block (N3). Same 防 kanji as the card name 防御 — "defend" and "prevent" share a root you can now spot on sight.
• 防御 (ぼうぎょ) — defense (the card's name). 防 (defend) + 御 (protect) — literally "the act of defending".
• スキル — Skill (the non-attack card-type tag). Block cards are always this tag.

強打きょうだ　8ダメージを与あたえる。弱体じゃくたい2を付与ふよする。脆弱ぜいじゃく状態じょうたいのモンスターはアタックから受うけるダメージが50%増加ぞうかする

"強打 (lit. "heavy strike") — Deal 8 damage. Apply 2 弱体 (lit. "weakened"). / Weakened monsters take 50% more damage from attacks."

• 弱体 (じゃくたい) — "weakened" (status name, lit. weak body/condition). 弱 (weak) + 体 (body) — the badge you see stack up on the enemy's health bar, and not "weak body."
• 脆弱 (ぜいじゃく) — fragile, vulnerable. The tooltip's own heading says 弱体 but its body says 脆弱 — the game mixes two words for the same status. You can read both; don't worry which is "official."

弱体2を付与する — callback: your kit verb 付与する in the wild. Status effects always attach a number this way: [status][stack count]を付与する.

不明ふめい　商人しょうにん　宝箱たからばこ　休憩きゅうけい　敵てき　エリート

"Unknown / Merchant / Treasure / Rest / Enemy / Elite"

• 商人 (しょうにん) — merchant (N3). 商 (commerce) + 人 (person) — the shop icon on every roguelike map, real vocabulary outside games too.
• 休憩 (きゅうけい) — rest, break (N3). The word your coworkers use for a coffee break — same 休憩 as the campfire node here.
• 敵 (てき) — enemy (N3). You already met this one in the modifier's fine print — now it's the map icon, same word everywhere.

宝箱 recurs from the run modifier — callback: you read this exact word two screens ago; now it's a map-legend icon instead of fine print.

戦利品せんりひん！　9ゴールド　デッキにカードを追加ついか　スキップ　次つぎへ

"Loot! / 9 Gold / Add a card to your deck / Skip / Next"

• 戦利品 (せんりひん) — loot, spoils of war. 戦 (battle) + 利 (profit) + 品 (item) — literally "battle-profit-goods", the reward-screen banner.
• ゴールド — gold. Katakana loan — no memorization required, you're just decoding sounds.
• スキップ — skip. Another straight katakana loan — the button you'll press when nothing on offer is worth it.

脳天のうてん割わり　32ダメージを与あたえる
暴走ぼうそう　ターン終了しゅうりょう時じ、手札てふだにあるランダムなアタック1枚まいを、ランダムな敵てきにプレイする
ランページ　9ダメージを与あたえる。この戦闘せんとう中ちゅう、このカードのダメージが5増加ぞうかする

"脳天割り (lit. "skull-splitter") — Deal 32 damage. / 暴走 (lit. "rampage") — At the end of turn, play a random Attack from your hand on a random enemy. / Rampage — Deal 9 damage. This card deals 5 more damage this combat."

• 脳天割り (のうてんわり) — "skull-splitter" (lit.). 脳天 (crown of the head) + 割り (split) — the one new word here; everything else you can already read.

増加する is the exact opposite of the modifier's 減少する — callback. Three full card texts on the same [数字+名詞]を[動詞] template, read straight through, no new teaching needed.