Mox Sapphire

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Mox Emerald

Time Walk

Black Lotus

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

Taiga

Demonic Tutor

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

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Underground Sea

Ancestral Recall

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.

Badlands

Mox Ruby

Bayou

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.