{1}{U}: Surveil 2. Activate only as a sorcery.
{1}{U}, Sacrifice Two Heads Are Better: Add the top two cards of your library to your evil plan.

Enchant creature
When Uncanny Likeness enters the battlefield, exile target creature card from a graveyard with mana value less than or equal to enchanted creature's mana value.
Enchanted creature is a copy of the exiled card.

Ward {2}
Whenever Wall Scaler deals damage to a player, draw a card.

Put target creature into its owner's library third from the top.

Target opponent shuffles their library. Then exile the top X cards of their library, where X is the number of spells you've cast this turn. Until end of turn, you may play cards exiled this way without paying their mana costs.
{U}, Discard The World Is Not Enough: Add the top card of your library to your evil plan.

Flying
Endgame
At the beginning of your upkeep, reveal the top card of your library and put it into your hand. You lose life equal to its mana value unless you're in your endgame.

When Black Spy enters the battlefield, create a first strike Gadget, then attach it to Black Spy.
Enchanted creatures and equipped creatures you control have hexproof from white.

{1}, Sacrifice another creature: Add the top card of your library to your evil plan.

Whenever Brot, Head Honcho or another Minion you control dies, you draw a card and lose 1 life.

When Codename: Half Moon enters the battlefield, create a menace Gadget, then attach it to Codename: Half Moon.
Whenever you tap a Swamp for mana, if Half Moon is tapped, add an additional {B}.
{B}: Target equipped or enchanted creature you control gets +1/+1 until end of turn.

When Cold-Blooded Assassin enters the battlefield, create a menace Gadget, then attach it to Cold-Blooded Assassin.

Endgame
Whenever a nontoken creature you control dies, create a 1/1 black Minion creature token. If you're in your endgame, you gain 1 life. Otherwise, you lose 1 life.

Destroy target creature. Create X 1/1 black Nightmare creature tokens, where X is that creature's power.

Devious Electrocution deals 3 damage to any target. You gain 1 life for each artifact you control.

Whenever you cast a black spell or an artifact spell, each opponent loses 1 life and you gain 1 life.
Whenever you cast a nonblack, nonartifact spell, you lose 1 life.

Destroy target creature that isn't enchanted or equipped.

Flying
Whenever Dreamreaper deals damage to a player, that player discards a card.
Whenever an opponent discards one or more cards, create a 1/1 black Nightmare creature token.

When Endless Mooks enters the battlefield, you may search your library for any number of cards named Endless Mooks, reveal them, put them into your hand, then shuffle.

Surveil 2, then add the top two cards of your library to your evil plan.

At the beginning of your upkeep, destroy all creatures.

Exile target creature. Create a Gold token.

Create three 1/1 black Minion creature tokens. Add the top three cards of your library to your evil plan.

Lifelink

When Grimblood's Mastermind enters the battlefield, add the top four cards of your library to your evil plan.
Whenever you cast a spell from exile, put a +1/+1 counter on Grimblood's Mastermind.

[+1]: Target player reveals two cards from their hand. You choose one of them. That player discards that card.
[–2]: Target player sacrifices a creature.
[–3]: Create Simone Birch, a legendary 3/4 black Human Warlock Minion creature token with deathtouch.
[–3]: Create Jamesson Stet, a legendary 4/3 black Human Warrior Minion creature token with menace.