Jeweled Lotus

{T}, Sacrifice Jeweled Lotus: Add three mana of any one color. Spend this mana only to cast your commander.

Yawgmoth's Bargain

Skip your draw step.
Pay 1 life: Draw a card.

Mox Ruby

Tolarian Academy

{T}: Add {U} for each artifact you control.

Library of Alexandria

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

Mox Jet

Black Lotus

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

Mox Pearl

Mox Sapphire

Griselbrand

Flying, lifelink
Pay 7 life: Draw seven cards.

Karakas

{T}: Add {W}.
{T}: Return target legendary creature to its owner's hand.

Ancestral Recall

Dockside Extortionist

When Dockside Extortionist enters, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Fastbond

You may play any number of lands on each of your turns.
Whenever you play a land, if it wasn't the first land you played this turn, Fastbond deals 1 damage to you.

Time Walk

Mana Crypt

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.
{T}: Add {C}{C}.