Howling Mine

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

Star Compass

Star Compass enters tapped.
{T}: Add one mana of any color that a basic land you control could produce.

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

At the beginning of your upkeep, you draw a card and you lose 1 life.

Counter target spell. Untap up to four lands.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Charcoal Diamond enters tapped.
{T}: Add {B}.

Nevinyrral's Disk enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

{T}, Sacrifice Urza's Bauble: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

{T}: Draw three cards.
{2}{U}{U}: Return Arcanis to its owner's hand.

{T}: Add one mana of any color that a land an opponent controls could produce.

Each other player discards a card. You draw a card for each card discarded this way.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

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

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.