This card has many interesting uses.

First, it is great when combined with Erestor and Galadhrim Weaver. Since both cards are inexpensive, you can play Galadhrim Weaver and Born Aloft as soon as you get them, even if they come up in your starting hand. Once you draw an event that you wish to play on the Planning Phase, you can discard Born Aloft to return Galadhrim Weaver to your hand, play the event and then play Galadhrim Weaver to shuffle the event back in the deck. I recently played a solo deck using this combo against the Conflict at the Carrock scenario and, after revealing both Hill Trolls very early, I managed to play Elrond's Counsel so many times that my threat level went from about 40 after the first few rounds to 19 by the time I won the scenario.

For scenarios that throw many condition attachments at the players, like The Dread Realm, it can be paired up with Miner of the Iron Hills to help players discard conditions more frequently.

It can also be used in Silvan decks if you do not want to go double or triple sphere.

Last, but not least, it can be used with Wandering Took to help another player get to 40 threat (Valour) early in the game without having to resort to Doomed events. In a 2-player fellowship, for instance, one of the players could play a Valour deck and the other one could play 2 heroes and 1 hero with a support deck full of questing allies and a few cheap ranged or sentinel allies, like Gondorian Spearman and Galadhon Archer.

Aside from recent controversy over this card's lack of "e" and Quickbeam's non-uniqueness, most players probably forget this card exists. It's no small wonder when you consider how useless this thing is. Yeah, I hear you, Gandalf works well with Born(e) Aloft and so does descendant of thorondor, but in all seriousness, this is just not good.

I've started calling this card the rich man's Sneak Attack, but while it works well with anything with a powerful "enters play" effect(cough cough), it is also one of the few ways to replay anything with a "when played from hand" effect.

The most powerful one I could think of would be Galadriel for her card search and willpower, especially since she would typically discard herself. After that West Road Traveller for active location shenanigans and Andrath Guardsman for enemy shenanigans. Making Rivendell Minstrel repeatable could also help set up more songs for a deck. And of course there's the Doomed allies Greyflood Wanderer, Herald of Anórien, Mirkwood Pioneer, and Henneth Annûn Guard. Of those the Herald seems most interesting to me, as a way to get in off-sphere allies in a leadership and tactics valour deck.

This also works with Radagast to scoop up creatures and replay them to keep triggering his free questing at a discount.

Overall an okay card thats overlooked in favor of Sneak Attack for good reason since you need lots of resources to replay allies and resource generation is typically found in leadership and if you're in leadership you may as well just go for the path of least resistance instead of trying to make a niche card and uncommon "when played" abilities work.