Arcades's last ability doesn't actually change any creature's power. It changes only the amount of combat damage it assigns. All other rules and effects that check power or toughness use the real values. For example, Rabid Bite won't cause a creature with defender to deal damage equal to its toughness.
If Arcades leaves the battlefield after a creature with defender has attacked, that creature remains an attacking creature, although it will assign damage equal to its power.
Last observed on Scryfall 2 months ago at $59.51. Over the trailing 90 days the price moved between $18.73 and $59.51 across 44 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 2 catalogued treatments from PM19 — the lineup includes Foil 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 #212s of *Core Set 2019 Promos*, the promotional run that shipped alongside the July 2018 Core Set 2019 release.
Card type: Legendary Creature — Elder Dragon, color identity green/blue/white, printed at mythic. Mythic rares historically land in roughly one out of every eight boosters at standard print densities. Mana cost: {1}{G}{W}{U} (4 converted). Keyword abilities: Flying and Vigilance.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #5,879 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Even Amundsen. Rarix catalogs 104 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Even Amundsen
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
