Show Only Guru Approved Combos
Descendants of Muta's PathDescendants' Path Buy + Mutavault Buy
Play both, have the opportunity to play for 1 any creature of your deck.
I do invite you to stack your deck and play big fat guys with the rest of your cards (but it does work if you want to play elves for 1, though...)
Selvala the Mana DorkSelvala, Heart of the Wilds Buy + Freed from the Real Buy + Mana Reflection Buy
Infinite mana of any color or combination of colors. Freed is broken, Reflection can be broken, etc... Just wasn't here yet with the new card.
1. , : Get
2. : Untap Selvala, Floating
3. , : Get (Any 1)(Any 1)(Any 2)(Any 2), Floating from previous tap.
4. Repeat until desired amount of each color
: Add any amount of mana to your mana pool of any combination of colors.
Heavy MetalMycosynth Lattice Buy + Vedalken Orrery Buy
Vedalken Orrery is a stand in for Panharmonicon (Kaladesh, Rare).
With both out, all permanents ETB'ing will trigger your field a second time, regardless of the nature of the ETB.
This is especially noteworthy with the landfall mechanic. That said, enchantments and walkers can now trigger here.
Avenger... Double counters.
Sporemound... 2 tokens per land instead of 1.
Valakut (Land)... 6 damage per mountain instead of 3.
Mirror MasteryRiku of Two Reflections Buy + Cloudstone Curio Buy + Peregrine Drake Buy
Play all three, with drake being last. Untap 5.
Then make a drake token off of Riku for 2. Untap 5 again. Net gain of 3.
Use Curio to bounce the original one back to hand off of the token hitting the field.
That's Genius! (version 2)Vedalken Orrery Buy + March of the Machines Buy + True Conviction Buy
As before, Vedalken Orrery is a stand in for Aetherflux Reservoir (Kaladesh, Rare).
For this to work you will need to be at a life total greater than 50 for this to work.
Drop all 3 then go haywire. Simple.
That's Genius! (version 1)Sydri, Galvanic Genius Buy + Vedalken Orrery Buy
Vedalken Orrery is a stand in for Aetherflux Reservoir (Kaladesh, Rare).
For this to work you will need to be at over 50 life.
In response to Aetherflux's activation, use Sydri to turn it into a creature, then give it lifelink/deathtouch until end of turn.
This should be enough to one shot the table.
Dualcaster ZombieDualcaster Mage Buy + Unearth Buy + Goblin Bombardment Buy
I think it works: cast Unearth (the target is not important but you must have a creature with power 3 or less in your graveyard). In response cast Dualcaster Mage copying Unearth. When the abilty of Dualcaster will trigger, sacrifice it to the bombardment so the copy of Unearth could target her. Reapeat again for infinite damage as the original Unearth will always remain on stack. You can use any sac engine to obtain what you prefer (mana, damage, etc...).
See comments to know how it works!
5 CMC GoodtimesTorrent Elemental Buy + Shadow Guildmage Buy + Timesifter Buy
I have discovered something! Have all 3 cards in play and put Torrent Elemental Buy on top of your library with Shadow Guildmage Buy's ability, letting it get exiled with Timesifter Buy and likely gaining you an extra turn. Return Torrent Elemental Buy to play from exile. 6 mana a turn = Consistent CMC on top = consistent turn advantage. Sounds like an EDH combo or maybe a EtB abuse deck.
Meet Volcano HellionVolcano Hellion Buy + Academy Rector Buy + Near-Death Experience Buy
Having trouble getting your opponent to kill your Academy Rector Buy? Do it yourself with Volcano Hellion Buy and while you're at it, put yourself at one life and get Near-Death Experience Buy to be set-up for the win. Maybe use AEther Vial Buy to flash a hellion in at the end of your opponents turn. Hue Hue Hue.
Hot HornetsVolcano Hellion Buy + Hornet Nest Buy
Use Volcano Hellion Buy's ability to damage Hornet Nest Buy for a desired amount and get that same amount of flying deathtouch 1/1 hornets. Add Essence Warden Buy for better value or even Purphoros, God of the Forge Buy for an instant win if making 9 Hornets. :P