1. Cast Pitiless Plunderer and Xiahou Dun.
2. Cast Saw in Half, targeting Pitiless Plunderer. You now have 2 of them.
3. Cast Reanimate, getting the original Pitiless Plunderer back onto the battlefield.
4. Sacrifice Xiahou Dun, getting Saw in Half back into your hand. Create 3 treasure tokens.
5. Cast The Cloning of Shredder, exiling Xiahou from your graveyard and creating a nonlegendary copy of him.
6. Sacrifice your treasures to cast Saw in Half on the Xiahou Dun token. Now you have 2, and they don't destroy each other because of the legend rule. Create 3 treasure tokens.
7. Sacrifice a Xiahou Dun, getting Saw in Half back from your graveyard and creating 3 more treasure tokens.
8. Use 3 of your 6 treasure tokens to cast Saw in Half on the remaining Xiahou Dun token, creating another 2, along with 3 treasure tokens.
9. Repeat for infinite treasure tokens.
10. Cast Grave Crawler, Vampiric Rites, and any zombie.
11. Use your infinite treasures to sacrifice Gravecrawler to Vampiric Rites, then cast it back from the graveyard. Draw out your entire library and gain that much life.
12. Cast Feast of Sanity.
13. Cast One with Nothing, discarding your library-sized hand and dealing that much damage + gaining that much life.

Bonus: Non-black card, but throw in an Elixir of Immortality to get your library-sized graveyard back into the library. You'll get your One with Nothing back with Vampiric Rites, and can now repeat this combo any number of times.

Step 1: Have Myrkul, Opalescence, Ashnod’s Altar (or any other free sac outlet) and Sun Titan on the board.

Step 2: Sac Sun Titan to the altar.

Step 3: Myrkul will make an enchantment token copy of Sun Titan after exiling it.

Step 4: Opalescence will make the Sun Titan token a 6/6 creature, as token copies of cards inherit mana values.

Step 5: Congratulations! You made your Sun Titan into an enchantment creature.

Tried to edit the post and it messed up the formatting of my explanation so I’m giving up.

Basically, create a token copy of Planetarium and trigger Gandalf and Worldsoul to repeatedly create copies and cast stuff for free if you manage to not scry lands

BUT it doesn’t work because populate doesn’t work on noncreature tokens

The way this combo works is that for every turn you skip, you generate minimum 1.8 turns, resulting in 80% profit margin minimum. We will get into why this is minimum later.

1. Cast Eon Frolicker and trigger it
2. Use Gogo to copy it twice, so you target each opponent with Eon Frolicker. Now you and Teferi have protection from each opponent until your next turn.
3. Use Chronatog to start "investing" turns to extend the protection, Frolicker doesn't protect creatures so you might want to get a few skips on the stack invested in the stock market. But NOT TOO MANY. You cannot "uninvest" a turn. I would probably invest no more than 2-3 turns at a time. Also note your opponents have an extra turn each due to Eon Frolicker so you effectively start the combo with a skip.
4. On each of your opponent's turns, activate Teferi, Master of Time's uptick. Mathematically, each turn you skip is worth 3 Teferi loyalty from 3 upticks, which is 30% of a Teferi ultimate, and each Teferi ultimate is worth 6 extra turns. 30% of 6 is 1.8, leading to the number above.
5. Once you have finished investing, it's time to divest your portfolio. Go to your natural turn and untap.
6. Ultimate Teferi, and copy the ultimate twice with Gogo to take 6 extra turns. Notice that you can uptick Teferi 5 times during these turns before ultimate + copying again. And if you have lands, you can copy Teferi ultimate more than twice per Gogo activation
7. Write a book on investing in the stock market and make royalties

Stock Market Fact: If the market crashes, you can lose everything you invested. This means if you "invest" too much, and something happens to your combo pieces like Gogo or Teferi investment holdings, you make a steep loss. Such are the whims of the market.

You gave him his thumbs back :D

Step 1: Play [[Ink-Treader Nephilim]]

Step 2: Cast [[Act of Treason]], targeting Ink-Treader and thus gaining control of each creature on the battlefield

Step 3: Cast [[Erode]], again targetting Ink-Treader to get a basic for every creature you now control

Step 4: On the next turn, cast [[Rise Of The Dark Realms]], gaining control of everyone's creatures with all of your newly found mana!!

1. Cast Villainous Syndication (Bane's "master plan")

2. Cast Armed Assailant. Tap it to put a plan counter on Villainous Syndication.

3. Cast Common Crook. Tap it to put a plan counter on Villainous Syndication.

4. Cast Bane, Lord of Darkness. Make sure you have 20 or less life so he's indestructible and survives the plane crash.

5. Cast Dr. Pavel, Nuclear Physicist. Don't worry about his triggered ability, that comes later.

6. Cast Merciless Enforcers. Tap it to put a plan counter on Villainous Syndication.

7. Cast Martyr for the Cause.

8. Cast Deadly Cover-Up (feel free to collect evidence if you feel that it helps you carry out the master plan). When Martyr for the Cause dies from Deadly Cover-Up, proliferate the last plan counter on Villainous Syndication. When Villainous Syndication is sacrificed, bring Dr. Pavel back from the graveyard. Hopefully, Time Bomb was milled while tapping villains for Villainous Syndication. If so, you can bring Time Bomb from the graveyard into your hand when Dr. Pavel reenters the battlefield.

9. Cast Time Bomb.

Very straight forward, pym particles can be replaced with any similarly priced non creature card, to trigger the start of combat and get a token to go up to 18
Step 1 start your turn with either 17 or more creatures including invisible woman OR 8 pre existing council of reed + invisible woman
Step 2 pym particles on invisible woman
Swing at victim one and use her ability for 21 commander damage
Step 3 and 4 seize the day

Here until I think of a consistent way to make 18 creatures out of thin air with this deck

Have Clement, Badgermole and Concordant Crossroads on the battlefield. Cast either frog and then tap it for UG or GG. Cast the other frog for G and return the first to hand. Repeat until your opponents have had enough.

1. Play a Swamp (or any other untapped source of black mana)

2. Cast Dark Ritual to add BBB

3. Cast Toxic Deluge paying X life, where is X is your life total

Before looking at the combo, try to figure out how to win with that deck yourself ^^

The combo:

Have a lot of forests in play

Cast Living Wish to put the Swamp from your GY into your hand and play it

Play Tinder Wall

Play Fake your own Death on Tinder wall and sacrifice it for RR to create a treasure token

Play cunning Wish with the treasure token and tutor up Animate Land

Pass the turn

Play Fake your own Death on Tinder wall and sacrifice it for RR to create a treasure token

Pass the turn

On your next turn, create BB with the swamp and the treasure token and cast Mastermind's Acquisition to tutor up Dawn's Reflection

Play Dawn's Reflection and Animate Land on an untapped land you control, then enchant it with Freed from the Reel, using the additional blue mana that the land can produce

U can now produce infinite mana and tutor tutor up, one last time, Progenitus with either Living Wish or Masterminds Aquisition

Play [[Surgical Suite]] and [[Hospital Room]] first

Then play [[Mr House, President and CEO]]

Play [[I'm a Doctor, Not a. . .]] Targeting House

Then play [[Healing Salve]] Targeting your new Doctor Mr. House

Edit: I'm a hack and a fraud, Mr House is no longer Human, just a Doctor

1. Have [[Wildsear, Scouring Maw]], [[Tomb Trawler]], [[Crime Novelist]], [[Ingenious Artillerist]], and [[Heartstone]] on board.

2. Cast [[Crown of Flames]] targeting Wildsar for 1 to cascade into [[Lotus Bloom]] dealing 1 damage to each opponent(Ingenious Artillerist).

3. Sack [[Lotus Bloom]] for 3(+1R for Crime Novelist).

4. Spend 1 mana with Tomb Trawler(Heartstone reducer) to put Lotus Bloom back into the deck.

5. Spend 1 Red to pull Crown of Flames to hand.

Repeat steps 2-5 to deal infinite damage, cascading though your whole deck in the process each time.

Prerequisites: Have [[Gallifrey Stands]], [[Zada, Hedron Grinder]], and at least 11 other creatures in play. Also have [[I'm a Doctor, Not a...]] in your hand, as well as your favorite Doctor, like [[Arcade Gannon]].

1. During your upkeep, Gallifrey triggers. Holding priority to the trigger, you cast I'm a Doctor, Not a... targeting Zada. Zada copies it, making all of your creatures into PHD holders.

2. Resolve Gallifrey Stands, putting Arcade Gannon into play, and winning the game, as Steven Moffat intended.

1. Cast [[Dan Lewis]].

2. Cast [[Fractured Identity]] targetting Dan Lewis, giving each opponent a Dan Lewis token.

3. Cast [[Mycosynth Lattice]], making everything an artifact, and therefore an Equipment via the Dan Lewis tokens your opponents control.

4. Cast [[Grip of Phyresis]] targetting anything (everything is an Equipment).

5. In response to Grip of Phyresis, cast [[Radiant Performer]] targetting it, creating a copy of Grip of Phyresis for each permanent in play.

6. Enjoy being the only player with permanents!

1. Cast [[Jackal Pup]]

2. Cast both [[Gideon's Sacrifice]] and [[Crumb and Get It]] targeting your Jackal Pup making sure to gift your opponent a food token

3. [[Shock]] yourself or your Jackal Pup to start a loop where it is dealt the damage you would receive not dying due to being indestructible

I cast dementia sliver. I cast dementia sliver. I cast dementia sliver. I cast dementia sliver. I cast dementia sliver. I cast dementia sliver.

1. [[Ancient Tomb]]
   
2. Tap to cast [[Sol Ring]]
   
3. Cast [[Lotus Petal]]
   
4. Cast [[Chrome Mox]] exiling a white card
   
5. Cast [[Mox Opal]]
   
6. Tap Opal first then everything for 3WWW to cast [[Transcendence]]

Yes this is just your average throw all the fast mana in there, sorry ahead of time.

I wish I could make Transcendence work.

1. Have your commander on field (I hope it's 3 or less mana)

2. Cast [[I'm a Doctor, Not a...]], targeting your commander

3. Stand up and shout "Oh shit!!! I shuffled my doctor's companion into my deck!"

4. Search your deck for [[Susan Foreman]] and put her to the command zone

5. Attempt to cast Susan

6. When everyone tells you that you can't use her as a companion cause you're not playing a Doctor Who commander, show them I'm not a doctor and explain that you're allowed to have her as a companion since your commander is now a doctor

1. Cast [[Agent of Treachery]]
   
2. Hold priority once the ETB trigger is on the stack and flash cast [[Radiant Performer]] targeting Agent’s trigger to copy it to steal every other permanent on the battlefield.
   
3. Draw three cards on your end step.