Just some LOTR cards I whipped up:

Gandalf The White: 4/5 Legendary Wizard, 3WW

Protection from Black, Vigilance

WW, Tap: Prevent all damage that would be dealt this turn.

2: Target Creature gets +2/+3 until end of turn.

The One Ring: Legendary Artifact - Equipment, 3

1: Equipped creature is unblockable and has double strike.

Whenever equipped creature deals damage, equipped creature gets shroud until the end of player's next upkeep.

Equip 3

Frodo Baggins, Ring-Bearer: 2/3 Legendary Hobbit, 2WG

Forestwalk, Mountainwalk, Swampwalk, Plainswalk, Islandwalk

Other Hobbits you control get +2/+2.

WW: Prevent the next two damage that would be dealt to target creature you control. If that creature is a Hobbit, remove all damage from it and remove it from combat.

Aragorn, Ranger of the North: 2/3 Legendary Human, 3G

First Strike

When Aragorn, Ranger of the North destroys a creature, put a quest counter on Aragorn, Ranger of the North.

When Aragorn, Ranger of the North has 4 quest counters on it, transform Aragorn, Ranger of the North.

///Transform///

King Elessar, 5/5 Legendary Human

Protection from Black, Protection from Red

Tap: Creatures you control get +4/+2 and trample until end of turn.

The Undying Lands, Legendary Land

The Undying Lands comes into play tapped.

Whenever The Undying Lands comes into play, you gain 8 life.

Tap: Add 3 to your mana pool. The Undying Lands cannot be untapped until the beginning of your next upkeep.

1, Tap: Add one mana of any color to your mana pool.