2021-11-19 : If Patchwork Crawler exiles a double-faced card, it will have the activated abilities of only the front face of that exiled card.

2021-11-19 : If an activated ability of a card in exile references the card it's printed on by name, treat Patchwork Crawler's version of that ability as though it referenced Patchwork Crawler by name instead.

2021-11-19 : If you control more than one Patchwork Crawler, each will have only the activated abilities of creature cards exiled with that specific Patchwork Crawler.

2021-11-19 : Once Patchwork Crawler leaves the battlefield, it will no longer have the activated abilities of the creature cards exiled with it. If it returns to the battlefield, it will be a new Patchwork Crawler with no connection to those exiled cards.

2021-11-19 : Patchwork Crawler gains only activated abilities. It doesn't gain triggered abilities or static abilities. Activated abilities contain a colon. They're generally written “[Cost]: [Effect].” Some keywords are activated abilities; they have colons in their reminder text.