Ad Nauseam [Shards of Alara]

Ad Nauseam [Shards of Alara]Set: Shards of Alara Type: Instant Rarity: Rare Cost: {3}{B}{B} Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value. You may repeat this process any number of times. When the task spilled over into undeath, he stopped calling it his life's work.

where X is the number of creatures you control

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} Whenever you activate an ability

" —John Milton

They hold ground

where X is the number of attacking creatures

Whenever a Dragon you control dies while Boneyard Scourge is in your graveyard

{T}: Add {W}{U}

Not tournament legal

You gain X life

Set: Innistrad: Crimson Vow Type: Creature — Human Werewolf Rarity: Mythic Cost: {4}{G}{G} Hexproof

creatures defending player controls get -1/-1 until end of turn

Set: Double Masters Type: Land Rarity: Rare {T}: Add {C}