Show Only Guru Approved Combos
Potent Citadel ReservoirBolas's Citadel Buy + Aetherflux Reservoir Buy + Necropotence Buy
Bolas's Citadel is already really easy to abuse with the Reservoir, but you usually stop after hitting a land. With Necropotence, you can exile that land for only 1 life and continue chaining spells.
If you don't win with casting your whole deck, you will almost certainly hit 50 life for the Reservoir at least once.
Begin the Ritual!Shadowborn Apostle Buy + Razaketh, the Foulblooded Buy + Bloodbond March Buy
There was another combo here that used the Apostles only once per turn.
1. Activate Apostles. Get Razaketh.
2. Sac a creature (like another Apostle) to tutor for an Apostle.
3. Cast Apostle. Get all in grave to field.
See first comment for full description.
Remove all damageFavored Hoplite Buy + Saving Grace Buy
Flash Saving Grace Buy enchants Favored Hoplite Buy all damage goes to Favored Hoplite Buy where it will be prevented
Fractured Omen (f./Fractured Identity from C17.)Symbiotic Deployment Buy + Omen Machine Buy + Ordered Migration Buy
Ordered Migration is a stand-in for Fractured Identity (C17, Rare).
Play Symbiotic Deployment first, then exile it via Fractured Identity. This will force opponents to create token copies of Symbiotic Deployment.
Next, drop Omen Machine to prevent both the drawing of cards, and of playing spells during their draw step.
This will lock opponents out from their libraries, while allowing you to play cards off Omen Machine.
Atla's Rolodex (f./Atla Palani from C19.)Mirror Entity Buy + Jacques le Vert Buy + Invigorate Buy
Jacques le Vert is a stand-in for Atla Palani, Nest Tender (C19, Mythic Rare).
Play Atla and Mirror Entity first then play any pump spell, such as Invigorate, targeting Atla.
Finally, activate Mirror Entity for Zero an arbirtary number of times.
This will cause you to infinitely rolodex your deck, as long as you have a major Eldrazi Titan in the deck.
Creates Infinite ETB's/LTB's for all creatures in your deck.
Redeemed ArcanistFeather, the Redeemed Buy + Dreadhorde Arcanist Buy
Attack with both creatures in play and cast a spell from your graveyard for free. Instead of exiling it permanently, put it in your hand at the end of turn.
Grimgrin, Wolf-BornGrimgrin, Corpse-Born Buy + Young Wolf Buy + Retribution of the Ancients Buy
This is janky, but it creates a neat engine for killing creatures. Start with all in play.
1. Sac the Wolf. Undying brings it back, Grimgrin gets a counter.
2. Pay . Remove the counters from both creatures. Target creature gets -2/-2.
3. Repeat as necessary.
Effectively - : Target creature gets -2/-2 until end of turn. Untap Grimgrin.
Emmara gets tappedEmmara, Soul of the Accord Buy + Intruder Alarm Buy + Cryptolith Rite Buy
Have Emmara, Soul of the Accord, Intruder Alarm, and Cryptolith Rite in play. Tap Emmara for mana, create a Soldier token and untap Emmara. Continue for infinite mana and infinite Soldier tokens.
EDH Ruin FunZur's Weirding Buy + Words of Worship Buy + Staff of Nin Buy
Ruin up to five draws from your opponents per turn cycle. No one draws, even you!! Game ends with your opponents' libraries dry!!
Extortion (f./Dockside Extortionist from C19)Equilibrium Buy + Goblin Bully Buy
Goblin Bully is a stand-in for Dockside Extortionist (C19, Rare).
These two, along with any Zero CMC creature (as long as it has a base toughness of 1 or greater), will net infinite mana, as long as your opponents have 6 or more artifacts and enchantments between them.
This can also be done with Cloudstone Curio, but the zero CMC creature used will being restricted to Kobolds. Additionally, this can also be used in conjunction with any deck running an Aluren/Curio package.