# 2021 Magic: The Gathering Mystery Booster Playtest Cards 2021 #105

> The Chronobot from the 2021 Mystery Booster Playtest series, a rare Magic: The Gathering card featuring a unique temporal upkeep mechanic by artist Stephanie Mitchell.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Mystery Booster Playtest Cards 2021
- **Card number**: #105
- **Product type**: TCG_CARD

## Description

Chronobot is a notable entry within the 2021 Mystery Booster Playtest Cards series, serving as a fascinating glimpse into experimental mechanics designed for Magic: The Gathering. As card number 105 in the CMB2 set, this Artifact Creature — Construct showcases the innovative spirit of the playtest environment, where designers explore fresh interactions before final release. The card’s ability to switch upkeep steps with a target opponent creates a dynamic gameplay experience, challenging players to manage resources across alternating turns. This unique effect highlights the creative depth of the Mystery Booster Playtest Cards, making it a compelling piece for collectors interested in the evolution of game design. Crafted by artist Stephanie Mitchell, the card represents a specific moment in Magic's development history, offering enthusiasts a tangible connection to the iterative process behind the game's most beloved mechanics. For those studying the strategic possibilities of artifact creatures or tracking the lineage of temporal effects in Magic: The Gathering, this playtest card provides valuable insight into the community's engagement with new rulesets. Its rarity and distinct identity make it a prized addition for specialized collectors focused on the broader narrative of the brand's experimental eras.

## FAQ

### What does the Chronobot card do in Magic: The Gathering?

The Chronobot card allows you to switch your upkeep step with a target opponent for as long as it remains on the battlefield, meaning you take your upkeep on their turn and they take theirs on your turn.

### What set is the Chronobot card from?

This card is from the Mystery Booster Playtest Cards 2021, designated as card number 105 with the set code CMB2.

### Who illustrated the Chronobot card?

The Chronobot card was illustrated by Stephanie Mitchell, bringing the Artifact Creature — Construct to life for the 2021 playtest series.

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Last verified: 2025-11-29.