**Arcana Codex Deck**:
**Name:** Arcana Codex Deck
**Type:** Wondrous item (requires attunement)
**Description:** This beautifully illustrated deck of magical playing cards shimmers with arcane energy.
**Effect:**
1. **Spellcasting:** The deck contains 52 spell cards, each representing a spell of 5th level or lower. You can use an action to draw a card and cast the corresponding spell without expending a spell slot. Once a spell is cast, the card is discarded until you complete a long rest, at which point all discarded cards return to the deck.
2. **Digital Interface:** While attuned to the deck, you can access digital information and communicate with other devices as if you were proficient in Arcana and Technology checks. You can make Intelligence (Arcana) or Intelligence (Technology) checks using the deck as your focus.
3. **Data Storage:** The deck can store up to 10 pieces of information or spells that you have encountered during your adventures. You can retrieve this information as an action.
**Limitations:** You can only use the deck once per turn for casting spells.
