Mox Diamond [Stronghold]

Mox Diamond [Stronghold]Set: Stronghold Type: Artifact Rare Cost: {0} If Mox Diamond would enter the battlefield, you may discard a land card instead. If you do, put Mox Diamond onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add one mana of any color.

that player sacrifices it

Set: Tenth Edition Type: Enchantment Rarity: Uncommon Cost: {U} Your opponents play with their hands revealed

quoting Confucius

Set: Ravnica: City of Guilds Type: Instant Uncommon Cost: {R}{W} Lightning Helix deals 3 damage to any target and you gain 3 life

Set: Worldwake Type: Legendary Planeswalker — Jace Rarity: Mythic Cost: {2}{U}{U} +2: Look at the top card of target player's library

infecting the land with his final curse

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

They sapped the strength of our defenses

and of renown: but mysteries are revealed unto the meek

A step in one direction is two steps away from another

Endbringer

Set: Planechase Anthology Planes Type: Plane — Ulgrotha Rarity: Common Whenever a nonblack card is put into a player's graveyard from anywhere