Fireproof Scalemail
Artifact - Equipment
Equipped creature cannot be dealt noncombat damage.
Whenever ~ is unequipped from a creature, untap it.
Equip

Proof in the Pudding
Artifact — Food Clue
Morbid — , , Sacrifice Proof in the Pudding: Draw a card. You gain 3 life. This ability costs less to cast if a creature died this turn.
"Aha, just as I expected! The lady's missing fingers were hidden in the trifle!" "You suspected that and you let us eat some?"

Kaz'therath, Proof of Damnation —
Legendary Creature — Demon (M)
Flying
: Exile Kaz'therath from your hand or graveyard haunting target creature.
If haunted creature would die, exile it instead and put a number of soul counters on Kaz'therath equal to that creature's mana value. Then, if there are soul counters on Kaz'therath equal to its mana value, put it onto the battlefield. Otherwise, choose another target creature and Kaz'therath haunts that creature. If you can't choose another creature this way, put Kaz'therath into your graveyard. (Remove counters when this moves from exile to the battlefield or a graveyard.)
6/6

"Out, Damned Spot!"
Enchantment - Aura Script
Enchant creature you control.
Enchanted creature has indestructible and ward as long as it hasn't dealt damage this turn.
Rehearse (You may cast this spell for its Rehearse cost. If you do, return it to your hand at the beginning of the next end step unless you pay its Rehearse cost again).

Cast Out Shadows-
Instant
For each creature you control that isn't blocking, choose up to one unblocked creature attacking you or a planeswalker you control. Each creature you control blocks the creature you chose for it. (Even if they couldn't normally.)
Draw a card.
"There is no corner dark enough to hide from the eyes of the righteous."~Emthail, blind inquisitor

hard idea to format.

Cast Iron Pan —
Artifact — Equipment (C)
Equipped creature gets +1/+1.
As long as you control a Food, equipped creature has lifelink.
Equip

Details Devil
Creature - Devil (U)
Whenever a player draws their second card each turn, Details Devil deals 1 damage to any target.
2/3

Devilled Eggs —
Artifact Creature — Devil Egg Food (U)
When Devilled Eggs dies, create a 4/4 black and red Devil creature token.
, , Sacrifice Devilled Eggs: You gain 3 life.
0/2

Phoenix Egg
Creature - Phoenix Egg (R)
Defender
When Phoenix Egg dies, create a 3/3 red Phoenix creature token with flying.
Whenever a Phoenix you control dies, return Phoenix Egg from your graveyard to your hand.
0/3

Egg Poacher
Creature - Human Rogue
: Gain control of target Food. At end of turn, sacrifice it.
2/2

Corporate Poacher
Creature — Human Ninja
When Corporate Poacher enters the battlefield, choose up to one +1/+1 counter on a creature you control, up to one Aura you control, and up to one Equipment you control. For each, target creature's controller may pay . If they don't, you gain control of that creature. Move that counter to that creature and attach that Aura and/or Equipment to that creature.
Ninjutsu
"Tell me, does your boss really appreciate you?"
2/2

Industrial Schematics —
Artifact (R)
At the beginning of your upkeep, create a token of each service you've paid for.
Services
Surveillance — : 1/1 colorless Thopter creature with flying
Facilities — : Island land
Gruntwork — : 4/4 colorless Golem creature

———

Service {cost} (Pay a service cost as a sorcery to add its benefits to this permanent. Each service can only be paid for once.)

Industrial Sabotage
Instant {R}
Until end of turn, whenever an opponent casts a spell, that player discards a card.

Plan the Heist
Sorcery
Search your library for a card, shuffle, then put it on top of your library. If this spell is a copy, draw a card.
Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

This went through so many iterations, then I went simple.

Train Heist
Enchantment Artifact - Saga Vehicle (R)
I: Train Heist gains crew 2 and "Whenever this Vehicle deals combat damage, create a Treasure token."
II, III: Create a 1/1 black Rogue creature token.
IV: For each Treasure you control, create a Treasure token.
5/5

Gravy Train
Artifact - Vehicle {R}
Crew 2
At the beginning of your upkeep or whenever Gravy Train is crewed, create a Food token.
3/3

How to Train Your Dragon
Artifact
When How to Train Your Dragon enters the battlefield, create a 0/1 red Dragon creature token.
Whenever a non-Dragon creature enters the battlefield under your control, choose a kind of counter from among flying, first strike, deathtouch, hexproof, lifelink, menace, reach, trample, vigilance, and +1/+1. Put a counter of the chosen kind on a Dragon you control. You may only choose an ability counter if the creature that entered the battlefield has that ability.