The second ability represented by the "partner with [name]" keyword modifies the rules for deck construction in the Commander variant and has no function outside of that variant. If a legendary creature card with "partner with [name]" is designated as your commander, the named legendary creature card can also be designated as your commander.
Once a creature's training ability has triggered, destroying the other attacking creature or reducing its power won't stop the creature with training from getting a +1/+1 counter.
"Partner with [name]" represents two abilities. The first is a triggered ability: "When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle."
Last observed on Scryfall 2 months ago at $0.33. Over the trailing 90 days the price moved between $0.32 and $0.45 across 106 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 2 catalogued treatments from WHO — the lineup includes Extended Art 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 #420 of *Doctor Who*, the set that shipped alongside the October 2023 Doctor Who release.
Card type: Legendary Creature — Human Detective, color identity red/blue, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {1}{U}{R} (3 converted). Keyword abilities: Partner with, Training, First strike, and Partner.
Legal in Legacy, Vintage, and Commander.
EDHrec ranks this card #15,356 in Commander, putting it in the fringe-play tier of the format's playable pool.
Illustrated by Syd Mills. Rarix catalogs 33 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Syd Mills
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
A creature's training ability triggers only when both that creature and a creature with greater power are declared as attackers. Increasing a creature's power after attackers are declared won't cause a training ability to trigger.
Note that the target player searches their library (which may be affected by effects such as that of Stranglehold) and that the card they find is revealed, even though these words aren't included in the ability's reminder text.
