**Light‑green VICTORY overlay** (with dark‑green border) so wins can't be confused with the black/yellow DEFEATED screen. - **Four luck‑driven cards**: *ChanceStrike* (6–10 dmg), *Reckless* (12 dmg + 50% chance to self‑hit 4), *Gamble* (draw 1–3 cards), *WildVenom* (2–5 poison). All have upgrade paths that widen or raise the roll. - **Gold economy**: kill loot drops (5–12 / 15–25 / 25–50 for normal / elite / boss). Gold counter shown in the battle HUD. - **Potions** — 3‑slot belt, 5 flavours (Heal / Fire Bomb / Block / Energy Draft / Draw Draught). **Long‑press UP** in battle to open the potion menu. - **Shop floors (F4 / F12 / F22 / F27)**: Buy random card (50 g), remove a card (75 g), buy random relic (150 g) or potion (30 g). Prices scale by `1 + floor/10`. - **Random events** (25% chance between most fights): Shrine, Gambler, Altar, Travelling Merchant, Cursed Chest. - **Card rarity + floor‑weighted drafts**: common/uncommon/rare mix shifts from `80/18/2` (early) → `50/35/15` (mid) → `30/45/25` (late). Each card row shows a gray/blue/gold rarity stripe. - **Boss relic choice**: each boss kill offers **3 unowned relics** (auto‑granted if fewer remain). - **Second class — Rogue**: unlocked by beating the Ancient with Knight. Starts with 50 HP and a deck built around Dagger + Poison. - **Settings menu**: vibration on/off (gates every `vibes_*` call), reset run save, reset high scores / ascension / class unlock. - **End‑of‑run stats window**: cards played, dmg dealt/taken, turns, potions used, gold earned, relics found, upgrades taken. - **8 achievements** (bitmask persist, main‑menu viewer): First Blood, First Victory, Ascended, Relic Hoarder, Pacifist, Alchemist, Rogue Awakens, No‑Heal Boss.