# 2021 Magic: The Gathering Alchemy: Innistrad #15

> The Formula is a rare instant card from the 2021 Magic: The Gathering Alchemy: Innistrad set, designed to reduce casting costs for nonland spells in your hand.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Alchemy: Innistrad
- **Card number**: #15
- **Product type**: TCG_CARD

## Description

Discover the Formula, designated as card number 15 in the 2021 Alchemy: Innistrad set, stands as a powerful blue instant within the Magic: The Gathering trading card game. Created by artist Joshua Cairos, this rare card requires a mana cost of four generic and two blue mana to cast, resulting in a total mana value of six. The card is categorized under the blue color identity, fitting seamlessly into decks that prioritize spell reduction and tempo control.

The strategic utility of Discover the Formula lies in its unique ability to manipulate the mana economy. Upon resolution, players seek three nonland cards from their library. This action not only provides card advantage but also triggers a lasting effect where nonland cards in the hand permanently cost one mana less to cast. This mechanic allows collectors and players to explore synergies that accelerate the deployment of expensive spells, making it a compelling component for those interested in the tactical depth of the Innistrad block.

As part of the Alchemy format, this card represents a digital-first approach to Magic: The Gathering, offering fresh ways to interact with familiar mechanics. The design of Discover the Formula emphasizes efficiency and resource management, appealing to enthusiasts who value precise control over their game state. Whether used in constructed formats or casual play, the card’s ability to lower casting costs creates dynamic opportunities for strategic maneuvering. Collectors of Magic: The Gathering often seek out cards like Discover the Formula to complete their Alchemy: Innistrad collections or to study the evolution of blue spell reduction mechanics within the Innistrad universe. The card’s straightforward yet impactful effect makes it a notable entry for those tracking the thematic and mechanical innovations of the Alchemy series.

## FAQ

### What type of card is Discover the Formula?

Discover the Formula is a rare instant card from the Magic: The Gathering Alchemy: Innistrad set. It belongs to the blue color identity and has a mana value of six.

### How does the card's ability work?

When cast, the player seeks three nonland cards from their library. Afterward, all nonland cards in the player's hand permanently cost one mana less to cast.

### Who is the artist of this card?

The card was illustrated by Joshua Cairos, whose artwork appears in the 2021 Alchemy: Innistrad expansion.

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Last verified: 2025-11-29.