Rule 740.2

Some card text refers to Units in particular ways:

• 740.2.a A unit is alone when there are no other friendly units at the same location.
• 740.2.b A unit is one on one when it and the enemy unit at the same location are both alone.
• 740.2.c A unit is in combat if it is occupying a battlefield where combat is ongoing and has a combat designation.

Official Core Rules