# 2021 Magic: The Gathering Mystery Booster Playtest Cards 2021 #81

> Maro's Gone Nuts, a rare 2021 Mystery Booster Playtest Card featuring unique doubling mechanics and artwork by Mark Rosewater.

Canonical URL: https://supercatch.com/product/magic-the-gathering-mystery-booster-playtest-cards-2021-maros-gone-nuts-81

## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Mystery Booster Playtest Cards 2021
- **Card number**: #81
- **Product type**: TCG_CARD

## Description

The 2021 Mystery Booster Playtest Cards series offers a unique glimpse into experimental designs for the Magic: The Gathering trading card game. Among these prototypes is Maro's Gone Nuts, card number 81, an Enchantment with a mana cost of {G}{G}. Designed by Mark Rosewater, this piece serves as a fascinating study in game design logic for enthusiasts of the format.

Collectors of Magic: The Gathering trading card game cards often seek out playtest materials to understand the evolution of mechanics. The Mystery Booster Playtest Cards release provides a distinct aesthetic and structural identity compared to standard expansions. Maro's Gone Nuts represents a specific moment in this creative process, highlighting how designers test exponential growth effects. For investors and hobbyists building a library of rare Magic items, this card offers a tangible connection to the development phase of the game. The product identity is rooted in its status as a non-regular release, making it a distinctive addition to any focused collection of Magic memorabilia.

## FAQ

### What is the mechanical effect of Maro's Gone Nuts?

The card has a unique ability that doubles any effect that doubles, effectively quadrupling the outcome of such interactions.

### Who designed the card Maro's Gone Nuts?

Mark Rosewater is credited as the artist for this card in the 2021 Mystery Booster Playtest Cards series.

### Is this card part of a standard Magic set?

No, this card belongs to the Mystery Booster Playtest Cards 2021 subset, which features experimental designs not originally printed in standard expansions.

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Last verified: 2025-11-29.