Mana Confluence [Journey into Nyx] Spirit then add one mana of

then add one mana of any color

Set: Antiquities Type: Creature — Phyrexian Demon Rarity: Rare Cost: {4}{B}{B} Flying (This creature can't be blocked except by creatures with flying or reach

All creatures of the chosen type get -1/-1

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} Whenever you activate an ability

if two Goblin Warriors and a Goblin Shaman are on the battlefield

Mana Confluence [Journey into Nyx] Spirit then add one mana ofSet: Journey into Nyx Type: Land Rarity: Rare {T}, Pay 1 life: Add one mana of any color. Five rivers encircle Theros, flowing with waters more ancient than the world itself.