Magic: The Gathering

Growth-Chamber Guardian

Ravnica Allegiance Promos 128p • rare

Set: Ravnica Allegiance Promos
Collector number: 128p
Rarity: Rare
Mana cost: 1 generic mana green mana
Type: Creature
Colors: Green
Artist: Bram Sels
Market price: $0.30

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$0.30est. via TCGplayer

Market

What it's worth

$0.30market price via TCGplayer · Aug 8, 2026$0.15 – $0.30 over the tracked period

$0.30Aug 8, 2026

Estimate for a typical copy of Growth-Chamber Guardian; condition, printing, and grading move the real number.

Lore

Why it matters

As part of the Ravnica Allegiance set, this promo version of Growth-Chamber Guardian features unique border treatment and artwork by Bram Sels. The card is prized by competitive players for its adapt ability, which offers efficient board presence and card advantage in green-based creature decks.

Generated by Pi, the collecto.rs collecting companion

Card face

What it does

2 generic mana green mana: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)

Whenever one or more +1/+1 counters are put on this creature, you may search your library for a card named Growth-Chamber Guardian, reveal it, put it into your hand, then shuffle.

Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card text via Scryfall. Not approved or endorsed by Wizards.

Formats

Where you can play it

Tournament legality for Growth-Chamber Guardian across the formats players actually play.

StandardNot legal
PioneerLegal
ModernLegal
LegacyLegal
VintageLegal
CommanderLegal
PauperNot legal
BrawlLegal
HistoricLegal
TimelessLegal
Penny DreadfulLegal
OathbreakerLegal

Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card text via Scryfall. Not approved or endorsed by Wizards.

Reflects the last catalogue refresh, not a live ruling.

Buy

Where to find one

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Provenance

Where it came from

Growth-Chamber Guardian was released in early 2019 as part of the Ravnica Allegiance set for the Magic: The Gathering trading card game. This specific version is a promotional variant featuring alternate art, released to coincide with the set’s launch to encourage participation in local game store events and tournaments. The card represents the Simic Combine, a guild within the Ravnica setting known for its focus on biological experimentation and adaptation, which is reflected in the card's ability to create copies of itself as it gains power.

The artwork was created by Bram Sels, an artist frequently commissioned by Wizards of the Coast for his ability to render complex, organic creature designs with a dark, atmospheric finish. Sels intended to capture the experimental aesthetic of the Simic guild, utilizing muted colors and intricate biological textures to portray the Guardian as an evolving, formidable entity. Upon its release, the card was well-received by competitive players for its efficiency and synergy with the game's mechanics, quickly becoming a staple in standard format decks of that era.

Generated by Pi, the collecto.rs collecting companion

Other printings

Every version of this card

The same card, printed again — different sets, treatments, and prices.

Collectors

Who's collecting this

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About

About Growth-Chamber Guardian

Growth-Chamber Guardian is a card in the Magic: The Gathering catalog on collecto.rs. Ravnica Allegiance Promos 128p • rare. Catalog data is sourced from Scryfall. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.

How many collectors track Growth-Chamber Guardian on collecto.rs?

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Can I track my own copy of Growth-Chamber Guardian?

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Where does the Growth-Chamber Guardian catalog entry come from?

The catalog entry for Growth-Chamber Guardian is sourced from Scryfall. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.