Abstruse Archaic

In some cases involving linked abilities, an ability requires information about "the exiled card." When this happens, the ability gets multiple answers. If these answers are being used to determine the value of a variable, the sum is used. If an ability attempts to create a token that is a copy of "the exiled card," it creates a token for each card exiled this way that is a copy of that card.

Abstruse Archaic's ability can copy activated and triggered abilities of dungeons, emblems, planes, and phenomenons. It can't copy the Planechase-specific "planeswalking ability" or the triggered abilities associated with the monarch or initiative designations, as those abilities have no source.

If the activated ability's cost contains a choice, such as a creature to sacrifice or a number of counters to remove, the copy uses that same information. You can't pay the cost again, even if you want to.