Archive a card

By Leganfuh, in KeyForge

Hope some on can help.

I note the card's number because I don know the englisch name: #114

The card says: archive a card

Which card am I allowed to archive? One of my hand? One from the play? Only mine? Also a card from the opponent? Opponents hand? From any deck? From my opponents discard pile? "a card" is so unclear for me.

Thank you!

Edited by Leganfuh
additional question

In the Glossary under "Archive" in the full rulebook,

Quote

If the ability instructing a player to archive a card does not specify where the card is archived from, the archived card comes from that player’s hand.

for contrast:

Random Access Archives
Play: Archive the top card of your deck.

Novu Archaeologist 
Action: Archive a card from your discard pile.

Research Smoko
Destroyed: Archive the top card of your deck.