Mountain

Mind Bend

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Mishra's Factory

{T}: Add {C}.
{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Time Walk

Clone

You may have Clone enter as a copy of any creature on the battlefield.

Chaoslace

Target spell or permanent becomes red. (Its mana symbols remain unchanged.)

Island

Beasts of Bogardan

Protection from red
Beasts of Bogardan gets +1/+1 as long as an opponent controls a nontoken white permanent.

Ancestral Recall

Timetwister

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

Mox Sapphire

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Volcanic Island

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Black Lotus

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

Strip Mine

{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.

Mox Ruby

Mountain Yeti

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
Protection from white

Sleight of Mind

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)