Defeating Giant Trolls with ease:

It is always a good tactic to create a custom hero with a lot of power
(Say about at least a level of 15).Not only will you be able to defeat
those giant trolls or summoned balrog's with ease,You will also be able
to defeat other hero's in no time.I find this a great way in defeating
my opponents.
Grey Havens:
Start at the bottom-most part. Build as many resource collectors as possible.
Then, capture the Shipright. Get Builders to build Wall Hubs where the Cave Trolls
lair is found (kill it first). Build a wall. Then, build units and an upgrade
structure. Get your units upgraded as much as possible. Put some by the wall to
defend it. Send the rest to the Shipright. Build the number of transports needed.
Put the units by the Shipright onto the transports. Send the transports to the enemy
camp. Optionally, split your units up and surround the camp. Destroy all the structures
except for the fortress. Finally, destroy the fortress.
General strategies:
Do not just rush your opponent's territory. Either send in a camo capable unit or a
very cheap, weak unit such as Orc Warriers. Scope out your opponent's base before
attacking with stronger units When attacking, use melee soldiers so attack buildings
and use Bowmen and Cavalry on enemy units.
Glitch: Hero power transfer:
Use the following trick to give a hero any power(s) desired, but it requires some time
and a lot of patience. First, make a hero with no powers then a second hero with the
power desired (for example, an elf hero with Healing). Then, stack them together on the
playfield. Click on the hero with the single power. Go to the "Powers" menu. When you click
"Customize", immediately press the quick switch key to your hero with no powers.
When you enter the powers menu, the "hero" using the powers from the power menu will be
the hero with no powers. Next, click on the blank unit portrait (the picture of power will
not be there) where the desired power is located and re-select it. You can now make other
heroes with the desired powers you want and put them on your new glitched hero.
Note: You cannot "pull" multiple powers from the valid hero unit; you will still need to
add them one by one to the glitched unit.
Glitch: Invincible Troll:
Kill a Troll while it is still coming out of the Troll Cage. It will be invincible.
It will freeze where it is, and you will still be able to shoot at it. You can still
gain power points from shooting it. Eventually, it will unfreeze and attack any enemies.
Glitch: Unlimited health for elves:
Create an elf hero with self-heal. You can get no recharge time on it. When you want to
click on it, do so but immediately move to another location. It will not recharge. You can
do this as many times as desired.
Glitch: Dol Guldur: Reveal entire map permanently:
First, you must have played the map in Skirmish mode to get the feel of it. Play it at
least three times and memorize the locations. When you start the level in the Good campaign,
you must have the Tom Bombadil power and Elrond's Farsight power. Use Elrond's power and
eyeball the Dark Shroud to find the middle section of Dol Guldur (the part with the
fortress in it). Note: You can see the texture of the terrain as you move the the Farsight
power's pointer. Once you have successfully revealed the fortress area, summon Tom Bombadil
just in front of the fortress. Once he is in, the shroud should disappear permanently with
no fog of war. You can see exactly what the enemy is doing at the moment.
You can use Bombard, Flood, Earthquake, or Sunlight, to attack enemy units and buildings,
and when they are weakened, launch the assault with your army.