Type

[Avodroc13]

{Daring Thief}:
What type is it talking about? Subtype or supertype?

[Remillo]

Neither.

Cards can have Three types:
Super type (Legendary, Snow)
Card Type (Creature, Planeswalker, Instant, Sorcery, Artifact, Enchantment, Land, Tribal)
Subtype (Creature types and Land Types)

Daring Theif looks at the Card types and nothing else.

[TreeTopSky]

205.2a: The card types are artifact, creature, enchantment, instant, land, phenomenon, plane, planeswalker, scheme, sorcery, tribal, and vanguard. See section 3, "Card Types."

[Avodroc13]

So if a card said Artifact Creature, could I exchange an artifact for an artifact creature, or vice vs?

[TreeTopSky]

So if a card said Artifact Creature, could I exchange an artifact for an artifact creature, or vice vs?

Yes.

RESOLVED!