Banefire

Banefire deals X damage to target creature or player. If X is 5 or more, Banefire can't be countered by spells or abilities and the damage can't be prevented.

Siege-Gang Commander

When Siege-Gang Commander comes into play, put three 1/1 red Goblin creature tokens into play. {1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to target creature or player.

Sacred Foundry

Boros Guildgate

Settle the Wreckage

2WW

Clifftop Retreat

Clifftop Retreat enters the battlefield tapped unless you control a Mountain or a Plains. {T}: Add {R} or {W}.

Seal Away

Flash When Seal Away enters the battlefield, exile target tapped creature an opponent controls until Seal Away leaves the battlefield.

Sorcerous Spyglass

As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Field of Ruin

{T}: Add {C}. {2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles their library.

Mountain

({T}: Add {R}.)