Cavern of Souls

As this land enters, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Inspiring Vantage

This land enters tapped unless you control two or fewer other lands.
{T}: Add {R} or {W}.

Mountain

Plains

Sacred Foundry

({T}: Add {R} or {W}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Sunbillow Verge

{T}: Add {W}.
{T}: Add {R}. Activate only if you control a Mountain or a Plains.

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.

Dwalin, Weaponmaster

First strike
Whenever Dwalin enters or attacks, put a hone counter on each Equipment you control. (Each hone counter on an Equipment grants +1/+0 to equipped creature.)

Dwarven Mauler

Equip abilities you activate that target this creature cost {2} less to activate.

Dáin's Company

This creature has lifelink as long as you control another Dwarf.
When this creature enters, look at the top four cards of your library. You may reveal a Dwarf or Equipment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Kíli the Resourceful

Storied (If you control three or more artifacts, legendaries, and/or Sagas, you have an enduring story for the rest of the game.)
As long as you have an enduring story, you may pay {0} rather than pay the equip cost of the first equip ability you activate each turn.
Whenever another Dwarf or Equipment you control enters, draw a card. This ability triggers only once each turn.

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.

Basilisk Collar

Equipped creature has deathtouch and lifelink. (Any amount of damage it deals to a creature is enough to destroy it. Damage dealt by this creature also causes you to gain that much life.)
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Chainsaw

When this Equipment enters, it deals 3 damage to up to one target creature.
Whenever one or more creatures die, put a rev counter on this Equipment.
Equipped creature gets +X/+0, where X is the number of rev counters on this Equipment.
Equip {3}

Dragonfire Blade

Equipped creature gets +2/+2 and has hexproof from monocolored.
Equip {4}. This ability costs {1} less to activate for each color of the creature it targets.

Lavaspur Boots

Equipped creature gets +1/+0 and has haste and ward {1}. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)
Equip {1}

Leyline Axe

If this card is in your opening hand, you may begin the game with it on the battlefield.
Equipped creature gets +1/+1 and has double strike and trample.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Treasure

Bilbo's Gambit

Gift a Treasure (You may promise an opponent a gift as you cast this spell. If you do, they create a Treasure token before its other effects. It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Return target spell to its owner's hand. If the gift was promised, players can't cast spells this turn.

Bofur and Bombur were left behind to guard the ponies and such stores as they had.

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

Erode

Destroy target creature or planeswalker. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.

Rest in Peace

When this enchantment enters, exile all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead.

Shattered Acolyte

Lifelink
{1}, Sacrifice this creature: Destroy target artifact or enchantment.

Sunspine Lynx

Players can't gain life.
Damage can't be prevented.
When this creature enters, it deals damage to each player equal to the number of nonbasic lands that player controls.

Warrior

Voice of Victory

Mobilize 2 (Whenever this creature attacks, create two tapped and attacking 1/1 red Warrior creature tokens. Sacrifice them at the beginning of the next end step.)
Your opponents can't cast spells during your turn.

Manasources	Probability
1	97.33%
2	83.49%
3	54.93%
4	24.65%
5	6.83%
6	1.03%
7	0.06%

Color Pip	Probability
	96.02%
	93.01%
	39.95%
	39.95%
	39.95%
	39.95%

Boros Leyline Aggro

Lands (23)

Creatures (19)

Artifacts (18)

Sideboard (15)

Probability of drawing any mana sources in your first 7 cards

Probability of drawing a mana source of a specific color pip in your first 7 cards

Mana Cost Distribution

Mana Density