Thorin, Mountain-king

Trample
When Thorin enters, attach any number of target Equipment you control to target creature you control. When one or more Equipment become attached to that creature this way, that creature deals damage equal to its power to up to one target creature.

Bard, King of Dale

Reach, vigilance
If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.
If one or more tokens would be created under your control, twice that many of those tokens are created instead.

Smaug, Wicked Worm

Treasure

Flying
When Smaug enters, create X tapped Treasure tokens, where X is the number of artifacts your opponents control.
Whenever you cast a spell, if mana from a Treasure was spent to cast it, you draw a card and lose 1 life.

Thranduil, the Elvenking

Thranduil has all activated abilities of all Elf cards in your graveyard.
Whenever another legendary Elf you control enters, draw two cards, then discard a card.

The Arkenstone

Creatures you control get +1/+1.
At the beginning of your end step, draw a card.

Seek the Heart

Search your library for a legendary creature card, reveal it, put it into your hand, then shuffle. (Then exile this card. You may cast the artifact later from exile.)

The Arkenstone // Seek the Heart

The Lonely Mountain

Dwarf

({T}: Add {R}.)
This land enters tapped unless you control an Equipment.
{4}{R}, {T}: Create a 2/2 red Dwarf creature token. This ability costs {1} less to activate for each Equipment you control. Activate only as a sorcery.

Smaug the Magnificent

Flying, haste
Whenever Smaug attacks, he deals damage equal to the number of Treasures you control to any target.
At the beginning of your upkeep, create a Treasure token.

Roads Go Ever, Ever On

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Search your library for up to two basic Plains cards, exile them, then shuffle. You gain 2 life.
II, III — Put a card exiled with this Saga into its owner's hand.
IV — Whenever you attack this turn, target creature you control gets +1/+1 until end of turn for each Plains you control.

Belladonna Took

Whenever a token you control enters, you gain 1 life if this is the first time this ability has resolved this turn. If it's the second time, draw a card. If it's the third time, put a +1/+1 counter on each creature you control.

Bofur, Reliable Guardian

Concerted Care

Target artifact or creature you control gains hexproof and indestructible until end of turn. (Then exile this card. You may cast the creature later from exile.)

Bofur, Reliable Guardian // Concerted Care

Iron Hills Blacksmith

Double strike
When this creature enters, create a colorless Equipment artifact token named Axe with "Equipped creature gets +1/+0" and equip {2}.

The Queen of Dale

Human Soldier

Whenever an opponent casts their first noncreature spell each turn, you recruit. (Draw a card, then discard a card. If you discarded a nonland card, create a 1/1 white Human Soldier creature token.)

Bilbo, Luckwearer

Bilbo can't be blocked.
Whenever Bilbo deals combat damage to a player, draw a card, then discard a card.

Burglar's Plot

Exchange control of two target nonland permanents that share a card type. (Then exile this card. You may cast the creature later from exile.)

Bilbo, Luckwearer // Burglar's Plot

Bilbo, Thief in the Night

Spells you cast from anywhere other than your hand cost {1} less to cast.
Whenever Bilbo attacks, you may cast an artifact, instant, or sorcery spell from your graveyard. If an instant or sorcery spell cast this way would be put into your graveyard, exile it instead.

Fateful Discovery

Whenever an artifact you control enters, draw a card.

Most Decrepit Old Bird

Flying
Threshold — This creature gets +1/+1 as long as there are seven or more cards in your graveyard.

Speak Secrets

Mill four cards, then put an instant or sorcery card from among them into your hand.

The Hobbit