If Mishra's Foundry is already a creature, activating the second ability will override any previous effects that set its power and/or toughness to specific values. Other effects that are affecting its power and/or toughness, including +1/+1 counters and the effects of spells like Giant Growth, will continue to apply.
If Mishra's Foundry becomes a creature and you haven't controlled it continuously since the beginning of your most recent turn, you won't be able to activate its first or last abilities, and it won't be able to attack (unless it somehow gains haste).
This printing is one of 3 catalogued treatments from PRM — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #105868 of *Magic Online Promos*, the promotional run that shipped alongside the April 2023 Magic Online release.
Card type: Land, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #7,337 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Leon Tukker. Rarix catalogs 177 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Leon Tukker
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
