Primal Clay
Mana cost
Mana value4TypeArtifact Creature — Shapeshifter
Color identity
Colorless
RarityCommon
SetMasters 25 (A25)
ArtistLucas Graciano
Price€0.08 · foil €0.16 · $0.19
Primal Clay 
Artifact Creature — Shapeshifter
As this creature enters, it becomes your choice of a 3/3 artifact creature, a 2/2 artifact creature with flying, or a 1/6 Wall artifact creature with defender in addition to its other types. (A creature with defender can't attack.)
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Legality
CommanderLegalStandardNot legalPioneerNot legalModernLegalLegacyLegalVintageLegalPauperLegalBrawlNot legalOathbreakerLegalHistoricNot legalTimelessNot legalPenny DreadfulLegal
Rulings
2021-03-19
While not on the battlefield, Primal Clay is a 0/0 creature card. It doesn't have flying or defender.
2021-03-19
If an object on the battlefield becomes a copy of Primal Clay, it copies the values determined by its enters-the-battlefield replacement effect.
2021-03-19
If an object enters the battlefield as a copy of Primal Clay, it copies the values determined by its enters-the-battlefield replacement effect, but its power and toughness are determined by the copy's own enters-the-battlefield replacement effect. This can cause you to have a 3/3 creature with flying, or a 1/6 creature with flying and defender, for example.
Printings (11)

Masters 25A25 #228 · Common · €0.08

Magic 2013M13 #210 · Uncommon · €0.08

Masters Edition IVME4 #222 · Common · —

Classic Sixth Edition6ED #308 · Rare · €0.41

Fifth Edition5ED #395 · Rare · €0.30

Fourth Edition Foreign Black Border4BB #342 · Rare · €3.21

Fourth Edition4ED #342 · Rare · €0.61

Summer Magic / EdgarSUM #271 · Rare · €703.96

Foreign Black BorderFBB #271 · Rare · €2.17

Revised Edition3ED #271 · Rare · €0.63

AntiquitiesATQ #61 · Uncommon · €2.78