I personally think
Catapult is weak, it looks good on the surface but its SO unreliable.
Dwarves are solid, but
Mount Doom introduced Ninja Gollum decks that rape and pillage Dwarves
Post-Mount Doom sets brought in a number of new mechanics
Toil - reduce cost of cards by exerting characters of the same culture
Muster - discard then draw at the start of the regroup phase
Lurker - all skirmishes must be resolved before Lurker minions
Resistance - all companions now had resistance numbers printed on them, this was reduced by the number of burdens on the RB
All the minion cultures were wrapped up into Orc
![Orc [Orc]](https://lotrtcgdb.com/forums/Smileys/classic/orc.png)
Uruk-hai
![Uruk-hai [Uruk]](https://lotrtcgdb.com/forums/Smileys/classic/uruk.png)
Nazgul
![Wraith [Wraith]](https://lotrtcgdb.com/forums/Smileys/classic/wraith.png)
Evil Men
![Evil Men [Men]](https://lotrtcgdb.com/forums/Smileys/classic/men.png)
althought some new cards kept the old cultures like The Balrog,
Saruman, of Many ColoursFollowers were a new card type, not characters or allies, but cards that represented a character that assisted in some way by being attached to your companions.
Less and less money was available towards the
end of the game so a lot of errata came out after set 18, but Standard is a great format, as long as you and your opponent agree not to play silly decks that never got banned, like the Horn deck