Lore Seeker

Enchant creature card in a graveyard
When Animate Dead enters the battlefield, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Black creatures get +1/+1.

First strike
Protection from white

Swampwalk

Remove Contract from Below from your deck before playing if you're not playing for ante.
Discard your hand, ante the top card of your library, then draw seven cards.

Enchant land
At the beginning of the upkeep of enchanted land's controller, Cursed Land deals 1 damage to that player.

Add {B}{B}{B}.

Remove Darkpact from your deck before playing if you're not playing for ante.
You own target card in the ante. Exchange that card with the top card of your library.

{B}{B}: Counter target green spell.

Target spell or permanent becomes black.

Remove Demonic Attorney from your deck before playing if you're not playing for ante.
Each player antes the top card of their library.

{T}: Destroy target land.
At the beginning of your upkeep, unless you pay {B}{B}{B}, tap Demonic Hordes and sacrifice a land of an opponent's choice.

Search your library for a card and put that card into your hand. Then shuffle your library.

Spend only black mana on X.
Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, the Structure's stability before the damage was dealt, or the creature's toughness.

{B}: Regenerate Drudge Skeletons.

Enchant land
Enchanted land is a Swamp.

Enchant creature
Enchanted creature has fear.

{B}: Frozen Shade gets +1/+1 until end of turn.

White spells cost {3} more to cast.
Activated abilities of white enchantments cost {3} more to activate.

Target creature gets +X/+0 until end of turn.

Flying
Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

As Lich enters the battlefield, you lose life equal to your life total.
You don't lose the game for having 0 or less life.
If you would gain life, draw that many cards instead.
Whenever you're dealt damage, sacrifice that many nontoken permanents. If you can't, you lose the game.
When Lich is put into a graveyard from the battlefield, you lose the game.

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can't, Lord of the Pit deals 7 damage to you.

Target player discards X cards at random.

Haste
At the beginning of your upkeep, if Nether Shadow is in your graveyard with three or more creature cards above it, you may put Nether Shadow onto the battlefield.