# 2021 Magic: The Gathering Innistrad: Midnight Hunt #73

> The 2021 Magic: The Gathering card Secrets of the Key from Innistrad: Midnight Hunt. This Common Instant offers unique graveyard synergy and investigative mechanics for TCG enthusiasts.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Innistrad: Midnight Hunt
- **Card number**: #73
- **Product type**: TCG_CARD

## Description

Released in 2021 as part of the Innistrad: Midnight Hunt expansion, Secrets of the Key is a distinctive Common Instant bearing card number 73. Designed by Alix Branwyn, this card is a staple for players seeking utility in the blue mana color. The card’s primary ability allows you to Investigate, creating a Clue token that can be sacrificed to draw a card, offering efficient card advantage during gameplay.

For collectors and deck builders, Secrets of the Key gains additional strategic depth when cast from the graveyard. If you have managed to retrieve this card from your discard pile, it triggers Investigate twice, significantly boosting its utility in specific deck archetypes. This dual-functionality makes it a valuable addition to any Magic: The Gathering collection, particularly for those focusing on graveyard strategies or artifact synergies.

As part of the Innistrad: Midnight Hunt set, this card represents the gothic, vampire-infused aesthetic of the plane. Collectors appreciate the intricate details and the lore integration that defines the set. Whether you are completing a set, building a competitive deck, or simply appreciating the artistic and mechanical design of Magic: The Gathering, Secrets of the Key stands out as a functional and visually appealing piece of the 2021 release.

## FAQ

### What does the Investigate mechanic do?

Investigate creates a Clue token, which is an artifact that can be sacrificed for {2} to draw a card. This provides immediate card advantage and resource generation.

### Can Secrets of the Key be cast from the graveyard?

Yes, this card has Flashback for {3}{U}, allowing it to be cast from your graveyard. When cast from the graveyard, it creates two Clue tokens instead of one.

### What is the mana cost of this card?

Secrets of the Key has a mana cost of {U}, making it a one-mana Instant. This low cost allows it to be played early in the game or in response to opponent actions.

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Last verified: 2025-11-29.