- Race: Rats
- Type: Upgrade
- Tech requirements:
- Built where?: Laboratory
- Build cost / time: 4 ambria / 3 turns
- Required to build Onagers
- Attributes: none
To bring Torsion into play, you must have a ready Laboratory. Pay the cost of Torsion (4 ambria), place it face down underneath the Laboratory, and engage both cards 3 turns.
When Torsion finishes being researched, place it to the side of the playing area. It cannot be discarded or affected by other players for the remainder of the game.