The subject of this article originates from non-canonical sources.
To learn about what is considered "canon", see LOTR:Canon.
From her appearance Eleanor might be a noblewoman of Gondor (or one of the fiefdoms) as she wears a tiara on her head. She does not seem to have a weapon shown in her character portrait, however, in the LOTR: Journeys in Middle-earth, her mini-figure is shown with a broadsword, which she can used to defend herself if need be. Her armor is only of leather and cloth which is helpful against the elements and light attacks, but not very durable against heavy attackers.
In the card game, Eleanor is largely associated with defending. Her best use is to counter deadly treachery cards, however, it is not fully effective as the test of will player card which cancels out the treachery instead of replacing it with another encounter card. Eleanor's willpower of 1 is pretty weak for her to be used for questing regularly. Her attack value of 1 is pretty weak for her to be used as an attacker regularly without buffs. Eleanor's defense of 2 is good enough to use of her as a defender, however, her health of 3 does not last very long, and not many enemies have an attack value of 2 or less.