# 2021 Magic: The Gathering Mystery Booster Playtest Cards #31

> The Time Sidewalk, a rare sorcery from the 2021 Magic: The Gathering Mystery Booster Playtest Cards series, cataloged as card number 31.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Mystery Booster Playtest Cards
- **Card number**: #31
- **Product type**: TCG_CARD

## Description

The Time Sidewalk stands as a distinctive artifact within the 2021 Magic: The Gathering Mystery Booster Playtest Cards series, specifically identified as card number 31 in the CMB2 subset. Created by artist Steve Sunu, this rare sorcery card was designed to test experimental mechanics rather than serve standard competitive formats. Its unique ability allows players to take an extra turn after casting it, or, if found in their opening hand, exile the card to create four Time Walk token cards shuffled into their deck. This dual-effect design highlights Wizards of the Coast's approach to exploring powerful temporal mechanics in controlled environments. For collectors, Mystery Booster Playtest Cards offer a glimpse into the iterative design process of Magic: The Gathering, making them highly sought after by enthusiasts who value historical context and gameplay innovation. The Time Sidewalk is particularly notable for its high mana cost and significant impact, reflecting the experimental nature of the set. Collectors often seek these cards to complete their Mystery Booster Playtest collections or to appreciate the artistic and mechanical creativity behind Magic's development phases. The card's blue color identity and eight mana value make it a striking inclusion for any Magic: The Gathering trading card game collection focused on rare and unique playtest items.

## FAQ

### What is the Time Sidewalk in Magic: The Gathering?

The Time Sidewalk is a rare sorcery card from the 2021 Mystery Booster Playtest Cards series (CMB2). It features an ability that lets the caster take an extra turn or create four Time Walk tokens if exiled from the opening hand.

### Who illustrated the Time Sidewalk card?

Steve Sunu is the artist credited with illustrating the Time Sidewalk card for the Mystery Booster Playtest Cards set.

### What is the mana cost of the Time Sidewalk?

The Time Sidewalk has a mana cost of {4}{U}{U}{U}{U}, totaling eight mana, and is colored blue.

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Last verified: 2025-11-29.