The Balrog of Moria

Trample, haste
When The Balrog of Moria dies, you may exile it. When you do, for each opponent, exile up to one target creature that player controls.
Cycling {3}{R} ({3}{R}, Discard this card: Draw a card.)
When you cycle The Balrog of Moria, create two Treasure tokens.

Volcanic Island

Cephalid Coliseum

{T}: Add {U}. Cephalid Coliseum deals 1 damage to you.
Threshold — {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Careful Study

Badlands

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Mox Ruby

Griselbrand

Flying, lifelink
Pay 7 life: Draw seven cards.

Buried Alive

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Mox Jet

Show and Tell

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Rune-Scarred Demon

Flying
When Rune-Scarred Demon enters, search your library for a card, put it into your hand, then shuffle.

Reanimate

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to its mana value.

Lotus Petal

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Exhume

Each player puts a creature card from their graveyard onto the battlefield.

Entomb

Search your library for a card, put that card into your graveyard, then shuffle.