Before Reflections came out, there was a popular option (a popular, but very, very risky option) of trying Solo Frodo: playing just Frodo in your deck (with possibly one or two starting companions that you intended to kill early). The purpose was to deprive your opponent of twilight so that they couldn't play enough minions to overwhelm Frodo, if at all.
After Reflections and the introduction of alternate ring-bearers, numerous candidates became available for this technique, perhaps the most interesting being Gandalf:
Of course, with such a powerful companion as your Ring-Bearer, there must be a draw-back, and with the Solo method, the only option here is to add three burdens, so you'll need to pack
and other burden removing cards.
With so many cards to make Gandalf a beast, you're obligated to try out Solo Gandalf!