# 2021 Magic: The Gathering Secret Lair Drop #310

> The 2021 Secret Lair Drop featuring Unbreakable Formation, a powerful white instant card from the Magic: The Gathering trading card game.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Secret Lair Drop
- **Card number**: #310
- **Product type**: TCG_CARD

## Description

Unbreakable Formation, identified as card number 310 in the 2021 Secret Lair Drop series, represents a pivotal moment in Magic: The Gathering history. Released under the SLD set code, this rare white instant card offers strategic depth through its versatile effects. Designed by Tyler Walpole, the card provides creatures with indestructible status until the end of the turn. A unique addendum allows players to place +1/+1 counters and grant vigilance if cast during their main phase, showcasing the creative mechanics typical of Secret Lair releases.

Collectors often seek this product for its distinctive design and gameplay utility. As a white card with a mana value of three, Unbreakable Formation appeals to those who appreciate efficient, protective spells in their decks. The card's identity as part of this 2021 release adds to its catalog value, distinguishing it from earlier or later printings. For investors and hobbyists, acquiring this piece contributes to a comprehensive understanding of modern TCG evolution. It serves as a tangible link to the evolving landscape of Magic: The Gathering, where standard rulesets meet innovative design choices. Whether for deck building or collection completion, this card remains a notable entry in the Secret Lair catalog.

## FAQ

### What is the mana cost of Unbreakable Formation?

The card has a mana cost of {2}{W}, resulting in a mana value of three. It is a white instant card that requires one white mana and two generic mana to cast.

### What does Unbreakable Formation do in gameplay?

This instant grants indestructible status to your creatures until the end of the turn. If cast during your main phase, it also places +1/+1 counters on those creatures and grants them vigilance.

### Is Unbreakable Formation part of a standard set?

No, this card was released exclusively through the Secret Lair Drop series in 2021. It is not part of a traditional expansion set but is recognized by its SLD set code and card number 310.

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Last verified: 2025-11-29.