*cracks knuckles* Okay, down to business.

First, I need to figure out who's who and what they can do. Lanik is an Imperial Ranger. There's 7 of them, himself included (if I counted right). At 6'2" and strong, he's about 2 inches shorter than Erudessa and a good 4 inches or so shorter than the average elf male. Being 28 years old, he should likely have about 25 years of military-related practice and about 15 years of combat experience (since the army only accepts teenagers at the front lines), if he lived an average Imperial life. That's all up to you, though. Point is, he's good enough to be a Ranger. That means he's tough, strong, and ought to be reasonably level-headed in battle.

Erudessa is a typical elf female, physically speaking. She takes an active leadership role and travels often, so her stamina is reasonably well built-up. Running with soldiers for extended periods isn't too difficult. Her work as an inventor gives her a solid bit of muscular training, so while she's not as strong as other female elf soldiers who undergo dedicated training, she can survive a fight long enough for backup to arrive. Her primary combat strength is as a battlemage. Casting magic involves, among other things, completely imagining the task desired, and that requires time and focus. Erudessa can cast complex spells with a snap of her fingers or a wave of her hands, and she can cast multiple spells simultaneously. Her forte is Telekinesis, highly versatile remote manipulation magic. While she is innately capable of elemental magic, she can thus far only conjure up Light magic from the silver mana channels in her hair. Special hand signs are used to cast it.

Now for the setting. They are in the mountainous forests surrounding Aetherion. The terrain is highly uneven and densely packed with trees, bushes, and other foliage. Much of the surface stone is broken up by roots, but the denser, continuous stone of the mountains can be found further under the surface. The temperature is chilly at this altitude, but not unbearably so. If I read your post right, Finnigan dropped with the broken rock off a cliff about twenty feet, and Lanik descended to reach him. So by the end of your post, Lanik has Finnigan slung over his shoulders and is standing at the base of the cliff, twenty feet below ground level and possibly out of the denser forested area. He'll have to secure his man over his shoulder(s) before attempting to climb back up.

Erudessa is perched on a tree branch high above ground level, observing the situation unfold. Her current state of mind is Calculating/Observational. She wants to kill the Rangers and/or lead them off course into a trap. She has not yet set the trap, since she only just pinpointed their location. Her squad consists of four elf soldiers: Yanduin, Bethdul, Frandur, and Henindal, all armed with standard army gear. Yanduin is the youngest of the four, about 300 years old or so, but he's still older than Erudessa. Bethdul is slightly older. Both boys are solid swordfighters and deadly shots with the crossbow. Frandur is the oldest elf of the group, about 800 years old, and skilled in nature magic, water magic, air magic, quarterstaff fighting, swordfighting, spearfighting, accounting, finance, metalworking, carpentry, and several other crafts. Henindal is about 600 years old and a lot more focused. He's strong in ice magic, one of the best in the country, and competent enough in fire magic to compete with the professionals. He focused on magic to the detriment of other combat skills, meaning he's a fantastic ranged combatant, but he'd perish pretty quickly in melee. Like Erudessa, he can hold out until backup arrives, but not much more than that.

That should be enough material to get started. Gonna study your post some more and work on ways to write better.