# 2021 Magic: The Gathering Mystery Booster Playtest Cards 2021 #51

> The Xyru Specter playtest card from the 2021 Mystery Booster series, a unique Magic: The Gathering release designed to test new mechanics for the trading card game community.

Canonical URL: https://supercatch.com/product/magic-the-gathering-mystery-booster-playtest-cards-2021-xyru-specter-51

## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Mystery Booster Playtest Cards 2021
- **Card number**: #51
- **Product type**: TCG_CARD

## Description

The Xyru Specter card from the Mystery Booster Playtest Cards 2021 series offers a unique glimpse into the development of Magic: The Gathering. Released in 2021 and numbered 51, this rare card was created specifically to test experimental mechanics before potential future standard releases. Collectors interested in the evolution of game design find value in these playtest cards as they represent a distinct era of innovation within the trading card game. This product features the black mana cost of {2}{B}{B} and grants the flying ability, allowing it to evade many blockers. Its distinctive ability triggers whenever it deals combat damage, challenging opponents to a strategic discard mechanic. By displaying black cards from their hand, players can force additional discards, adding a layer of psychological depth to the gameplay. The Xyru Specter serves as a tangible piece of Magic history, appealing to those who appreciate the creative process behind the game. As part of the Mystery Booster Playtest Cards 2021, this card is a sought-after item for set builders and enthusiasts of experimental Magic: The Gathering content. It stands out in any collection due to its specific card number and its role in testing future game strategies.

## FAQ

### What is a Mystery Booster Playtest Card?

Mystery Booster Playtest Cards are experimental cards created to test new rules and mechanics for Magic: The Gathering. They are not part of any standard expansion set and are designed to help developers see how new abilities interact with the game.

### What abilities does Xyru Specter have?

Xyru Specter is a black Summon with the flying ability. Its unique triggered ability allows it to challenge opponents to discard cards when it deals damage, potentially forcing them to discard two cards if they cannot prove they hold black cards in hand.

### Why are 2021 playtest cards collectible?

These cards are collectible because they represent a specific moment in the development history of Magic: The Gathering. Collectors value them for their unique mechanics and their status as part of the Mystery Booster Playtest Cards 2021 series, which is distinct from regular sets.

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Last verified: 2025-11-29.