And They Shall Know No Fear [Warhammer 40,000] Merfolk Wizard This mana can't be spent

This mana can't be spent to pay generic mana costs

but how do we get down

{T}: Add {R} or {W}

Set: The Brothers' War Retro Artifacts Type: Artifact Creature — Elk Rarity: Uncommon Cost: {3} {3}

Set: 30th Anniversary Edition Type: Creature — Elemental Rarity: Uncommon Cost: {3}{R}{R} This version of this card has a non-standard Magic back

And They Shall Know No Fear [Warhammer 40,000] Merfolk Wizard This mana can't be spentSet: Warhammer 40,000 Type: Instant Rarity: Uncommon Cost: {1}{W} Choose a creature type. Creatures you control of the chosen type get +1 +0 and gain indestructible until end of turn. They are my bulwark against the Terror. They are the Defenders of Humanity. They are my Space Marines. The Emperor of Mankind