If you use Elf Medicine, try and use it with Idrial. If this is done, it will give full health instead of half.
Building skills
Get some of the best skills very early in the game, just practice. In the first level, find an enemy respawn point near a save point. Once there, keep attacking until you run out of AP and save the game. Your AP should have refilled, as well as your health. Keep doing this, and after a few hours you will get the special move from Berethor that can hit an enemy five times in a row. Note: This works for all characters, and not just Berethor.
Defeating Orc Veterans
In the Minas Tirith and Pelennor Fields levels, your basic Orc Veteran has at least 20,000 HP. You can use Berethor's Orc Bane twice to kill them. If it does not die, just use a plain attack to save your AP.
In Osgilath, you will encounter the big Orc featured in Lord Of The Rings: The Return Of The King. First, use Farimir's Quality (where he will counter attack for someone). Do it to everybody. He will counter attack for everyone with a volley of arrows. Then, use Captain's Volley until he runs away. For Berethor, use Ecthelion Wrath. For Idrial, use Loud Water Fury. For Eadon, use Rupture Armor. You may also want to use Morgul Decay. Do not have Elgost out, as he misses to much. It is best to have Idrial, Eadon, Berothor, or Morwen.
Defeating Sauron
On the battle of The Dark Lord Sauron, use Morgul Decay just like was done on the Witch King. The Dark Lord knows Berethor is strong. He will probably use Darkest Fear on him, then he will not be able to battle for a while. Use Elven Rage and it will do somewhere from 16,000 to 19,000 damage if it is a critical hit. Do not use Elegost. He misses often when you fight the Dark Lord. Try Eaoden, but his move Drain Health still only does 4,000 HP. Use Hadhod and kept using Cleaving Wound.
Have Hadhod, Elgost, and Berethor in your party. Make sure your Perfect meter is full, and you have Hadhod's passive skill that lets him always get criticals when the Perfect meter is full. On your first turn, use Morgul Decay on Sauron. On Berethor's first turn, have him use either double attack with Company Migh and War Call, or Company Night if you do not have Double Attack. Next, add the item that adds light damage to your melee/ranged attacks to Hadhod. He should now do about 33,000 damage every time he attacks.
Defeating the Balrog
Stock up on Elf Medicine before fighting the Balrog. Have Gandalf use it to bring you back to life; you will get more
unit points back if Gandalf uses it on you. Also, equip any Fire protection Elf Stones you have. The Balrog has about 70,000 HP.
Defeating the Mumakil
Use Stand Fast to prevent stun from Stomp; Paralyze to prevent Melee; Silence to Stop Spirit Immune to Bind Ranged; so Blind and/or Reduce Ranged Damage from Haradrim Volley (only attack it has remaining). Pierce is also recommended.
Defeating the Witch King
To defeat the Witch King at the Pelennor Fields, make sure that you have Hadhod's Second Age Dwarven Mithril Piercing Axe and the Dwarven Mithril Helm. When you face the Witch King, use these attacks: Berethor's Stunning Strike and Ectehlion Wrath, Hadhod's Mountain Rage, and Eaoden's Enraging Blow and Rohirrim Rage. The Witch King has 200,562 HP and 59,098 AP.
Easy wins
Do not use the normal attack. With Hadhod and Idrial use Spirit Powers. With Elegost, use Ranged Craft. With Berethor, use Sword Craft. With Morwen, use Thief Craft. With Eaoden, use Spear Craft. You will only get new skills if you use Spirit Powers, Sword Craft, Ranger Craft, Thief Craft, or Spear Craft. You will not get new skills by using the normal attack. When you get all skills in the crafts listed, use Axe Craft with Hadhod, Sword Craft with Idrial, Leadership with Berethor, Bow Craft with Elegost, and Dual-Axe Craft with Morwen. Eaoden may have two different kinds of skills. If he does, train the other. If he does not, change him with one of the five others.
Everlasting health
Once your Elf healer gains the Valor move that presets whoever you choose with an instant revival when ever you die,
use it at the beginning of each battle on her first, then on everyone else. If you maintain this so that no enemies can truly kill you, you will almost always be the victor.
Evil mode
Complete a chapter to unlock the ability to replay it in evil mode. This is an easy way to gain weapons, armor, and elfstones.
Gaining new moves
When fighting groups of Orcs, use Elegost's Sleeping Arrows, after getting Elegost's passive skill that effects all foes with them. Then, use the Double Attack skill with Berethor and his three hit attack. Just before killing the last Orc, use everyone's Spirit skill to gain SP points. This will allow you to gain new moves that would normally take many fights to gain.
Good sword for Berethor
To start the the game with a very good sword for Berethor (the first character you start with), do the evil mode of Osgiliath and save it on an early game. By doing this, you will get the Sword Of Isildur, which has a 200+ damage rating. At the beginning of the game, you can give at least 2,000 damage points from a normal hit with this weapon.
Helm's Deep
When you are at Helm's Deep, find Gamling in the armory. He will tell you to find Aragorn and his friends. Legolas will tell you where Aragorn and Gimli are located if you find him first. Legolas is outside along the wall. You must also find King Theoden who is also outside. After you talk to all of them, you must go back to Gamling. He will tell you that the Orcs broke through and it is time to fight. You will get to fight with Legolas first, Gimli next, then Aragorn last.
Morwen: Better weapons
Use her Steal Item ability on unique enemies (i.e. Bosses) such as Grima Wormtounge. This will give you weapons not found anywhere else. Note: Some of the Bosses have the same weapons.
Morwen: Ultimate weapon
Use Steal Item from the Witch King at Pelennor Fields to get the Third Age Rohirric Silver Battle Ax (base: x90 +9 per level, +8 Str, -2 Dex, +3 Spd).
Restore HP and AP
If you are low on HP or AP, find a save point. Save your game and both your HP and AP will be completely refilled.
Transferring Evil Mode treasure
Any treasure acquired in Evil Mode can be transferred to a regular saved game.