If Dark Imposter exiles a double-faced card, it will only have activated abilities of the front face of that exiled card, no matter which face was up on the battlefield.
2012-05-01
wotc
Once Dark Impostor 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 Dark Impostor with no connection to those exiled cards.
2012-05-01
wotc
If you control more than one Dark Impostor, each will have only the activated abilities of creature cards exiled with that specific Dark Impostor.
2012-05-01
wotc
If an activated ability of a card in exile references the card it's printed on by name, treat Dark Impostor's version of that ability as though it referenced Dark Impostor by name instead. For example, if Marrow Bats (which says "Pay 4 life: Regenerate Marrow Bats") is exiled with Dark Impostor, Dark Impostor has the ability "Pay 4 life: Regenerate Dark Impostor."
2012-05-01
wotc
Dark Impostor 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.
2012-05-01
wotc
Dark Impostor can target and exile a permanent that's only a creature temporarily, like an animated land. However, because that card isn't a creature card, Dark Impostor won't have any of that card's activated abilities.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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