Show Only Guru Approved Combos
Heritage RitualHeritage Druid Buy + Dwynen's Elite Buy + Cloudstone Curio Buy
Heritage + Cloudstone in play
#1 Cast Dwynen, token in game, token triggers Cloudstone. In response to Cloudstone ability use Heritage (tapping Heritage + Dwynen + Token), Cloudstone resolves, bounce Dwynen
#2 Cast Dwynen, G in pool, put a token, triggers Cloudstone, bounce Heritage, cast Heritage, 0 in pool, Heritage triggers Cloudstone, in response use Heritage's ability, GGG in pool, relsove Cloudstone, bounce Dwynen
Reapt #1 and #2 = infinite tokens (tapped)
Riku's ReversalRiku of Two Reflections Buy + Narset's Reversal Buy + Time Warp Buy
Riku in play. Cast Time Warp, copy it with Riku. Respond with Reversal targeting original Time Warp, copy it with Riku. Copy of Reversal targets original Reversal, replacing it with the same target, but putting the original in hand. Copy resolves, putting original Time Warp back into hand. Both copies of Time Warp resolve.
TL;DR : Take two extra turns after this one.
Supplanted InstantsSupplant Form Buy + Archaeomancer Buy + Omniscience Buy
1. Have Mancer and Omniscience in play.
2. Cast Supplant Form targeting Archaeomancer. Original goes to hand, token targets Supplant Form.
3. Return Supplant Form to hand.
4. Cast Archaeomancer, returning another Instant/Sorcery to hand
5. Repeat as necessary.
Belcher FamilyMikaeus, the Unhallowed Buy + Ashnod's Altar Buy + Plague Belcher Buy
This has not yet been posted, so I'm dropping it here. Belcher targets itself with the -1/-1 counters, negating the undying +1/+1 counter. Sac outlet of choice, Altar was just easiest to think of. Inf ETBs and death triggers (and mana, in this case).
Singular ArtisansEye of Singularity Buy + Faerie Artisans Buy
Locks your opponents down... Their creature dies, you will get the temporary copy, if they try casting a creature.
Deus Vult (f./Thassa's Oracle from THB)Demonic Consultation Buy + Jace, Vryn's Prodigy Buy
JVP is a stand-in for Thassa's Oracle (THB, Rare).
Play Thassa's Oracle.
Then, after it resolves, in response to
the ETB trigger, play DC and name a card
that's not played in your deck.
Produces an instant win via T.O.,
from any boardstate.
Servants to Composted Thinking.Painter's Servant Buy + Compost Buy + Psychic Corrosion Buy
1. Play all three, with Painter's Servant naming Black.
2. Draw a card however you choose.
Short of someone having an
Eldrazi Titan in their deck,
this will deck the table.
And you will have your deck in hand.
Oldest Trick In The BookChaoslace Buy + Blue Elemental Blast Buy
Chaoslace your opponent's Nightmare or Shivan Dragon or Force of Nature or Mahamoti Djinn, then Blue Elemental Blast it!! Can even counter spells or whatever!
InstaPitiless Plunderer Buy + March of the Machines Buy
Transform your Treasures into 0/0 creatures and create and infinite loop.
Add Reckless Fireweaver Buy to infinite damage
Chieftain of the War-TideStonehoof Chieftain Buy + Nacatl War-Pride Buy + Coat of Arms Buy
Have all three in play. Enter combat, attack with the creatures. If your opponent has 0 creatures, you hit for 13 damage. If they have 2 creatures, you are swinging for 29 with 17 of it being trample and the nontoken War-Pride is indestructible. It gets pretty absurd the more creatures your opponent has.