https://www.youtube.com/watch?v=XVfZHubikFwTry that if you want to beat Imladris
If you play Mordor, trolls are your friend. Their damage against buildings is excellent, and Imladris can't afford enough units to fully prevent them from destroying outer farms (especially if Imladris always stays near a well to heal up). Which gives you more mapcontrol, which gives you more money, which allows you to drown him in orcs + upgraded trolls.
In general, against Imladris you'll always need to have more of the map or you'll just get destroyed. Imladris suffers a lot from losing units, so you want to have a better economy and then start trading in fights. You don't necessarily have to win them by crushing his entire army, but if both of you lose half of your units, you'll then have a much easier time replacing your losses, thus gaining an advantage for the next fight.
Some loremaster-combos are indeed broken, they'll get tweaked in the future.