Sefris, Dungeon Speed-Runner v1.1.MKM (EDH / Commander) [Revision 5]

'Sefris of the Hidden Ways' powers a creature heavy, recurring ETB/LTB and Dungeon pay-off value engine. While this build is equipped to protect Sefris, the value competes on it's own and 'Radiant Solar' makes a capable lieutenant. While all +/- 40 creatures are selected for utility, many provide multiple pay-offs. Plague Wind provides a final haymaker.

Creature Value Highlights:

Protection + Graveyard triggers:

Obscura Interceptor - flash, return spell to owner's hand ETB, connive (discard creature for grave trigger)
Glen Elendra Archmage - sac to counter, goes to grave and persists back to the 'field.
Benevolent Bodyguard - sac for protection, goes to grave.
Siren Stormtamer - sac to counter, goes to grave.
Overcharged Amalgam - exploit to counter, grave trigger.

Removal + Graveyard trigger:

Angel of the Ruins - removal ETB, cycle ramp --> to grave.
Shriekmaw - removal ETB, evoke to grave.
Wispmare - removal ETB, evoke to grave.
Solitude - removal ETB, evoke to grave.
Plaguecrafter - sac ETB --> to grave
Cataclysmic Gearhulk - wipe ETB
Ashen Rider - removal ETB+LTB
Cathar Commando - sac removal, to grave.

Recursion + Graveyard trigger:

Doomed Necromancer - sac, recur to 'field --> goes to grave.
Obsessive Stitcher - sac, recur to 'field --> goes to grave.
Undead Gladiator - cycle --> to grave. self-recur to hand + discard.
Master of Death - self-recur to hand.
Athreos, God of Passage - creatures upon grave --> recur to hand.
Liesa, Forgotten Archangel - creatures upon grave --> recur to hand.
Priest of Fell Rites - sac to grave, self-recur via unearth
Corpse Connoisseur - tutor to grave ETB, self-recur via unearth
Luminous Broodmoth - re-cur non-flying creatures upon grave.

Ramp + Graveyard triggers:

Angel of the Ruins - cycle ramp to grave.

Draw + Graveyard triggers:

Mulldrifter - draw 2 ETB, evoke to grave.
Champion of Wits - draw/discard on ETB, self-recur from grave.

Tutor + Graveyard triggers:

Sidisi, Undead Vizier - opt to sac a creature ETB, tutor a card to hand.
Corpse Connoisseur - tutor to grave ETB, self-recur via unearth.

Dungeon Triggers:

Radiant Solar - any of your non-token creatures upon ETB.
Triumphant Adventurer - attack trigger
Barrowin of Clan Undurr - ETB trigger, recur power 3 or less from grave upon attack.
Midnight Pathlighter - single trigger for creatures damaging a player.
Yuan-Ti Malison - combat damage to player.
Nadaar, Selfless Paladin - ETB + attack
Ravenloft Adventurer - ETB initiative. Exile opponents creatures instead of graveyard, deal damage for each.
Immovable Rod - untap trigger
Thorough Investigation - sac clue token trigger

Other Notes:

Sakashima the Impostor - clone Sefris for double triggers.
Yawgmoth, Thran Physician - Sac outlet, removal and draw.
Morbid Opportunist - draws 1 card per turn for any other creature death.
Grim Haruspex - draws 1 card per your non-token creature death.
Solemn Simulacrum - ramp ETB, card draw LTB.
Attrition - Sac a creature to remove a non-black creature.
Dakkon, Shadow Slayer - +1 surveil2 for grave trigger, -3 for removal.
Vanish into Memory - temporary removal + draw or protection + ETB trigger on your own creature, then discard (grave trigger).
Tortured Existence - discard creature card to grave + recur another creature to hand: 1 mana dungeon trigger on loop each turn w/ Sefris.
Phyrexian Tower - sac (+grave trigger) for ramp.
Hostile Hostel // Creeping Inn - sac (+grave trigger) for flip-side finisher.
Riptide Laboratory - bounce wizards (Sefris) to hand for protection and ETBs.
Gift of Immortality - protect Sefris in theme or any creature for recurring grave + ETB/LTB triggers.
Strionic Resonator - Copy triggered ability for 2 (double up Sefris abilities + others)
Forbidden Alchemy - look at top 4 from library, keep 1, 3 to grave.

Interesting cards not in the current build:

Mikaeus, the Unhallowed - non-human creatures upon grave --> recur to field. Lots of humans in this build reduces value.
Hama Pashar, Ruin Seeker - Seems like an auto-include, but doesn't actually trigger dungeon or fuel recursion.
Step Through - ignore casting cost, 'wizardcycle' instead to tutor a key creature instantly for 2.
Mimic Vat - exiles a creature after it dies (grave trigger still works), releases already exiled creature back to the grave (another grave trigger) + recur ETB/LTB's.
Timeless Dragon - cycle ramp to grave, recur to field
Semester's End - Exile all of your creatures until end of turn instantly: Board state protection +/or recur ETB/LTB's.
Nimble Obstructionist - cycle to counter, goes to grave.
Reassembling Skeleton - self recurring chump blocker.
Culling the Weak - instant sac to grave + ramp.
Karmic Guide - recur to 'field ETB, echo to grave.
Crowded Crypt - sac to create decayed zombies (grave triggers).
Selhoff Entomber - discard creature card to grave, draw 1.
Burnished Hart - sac ramp to grave.
High Market - sac --> grave + life
Dungeon Map - ramp, tap trigger
Malevolent Hermit // Benevolent Geist - sac to counter, goes to grave + recursion.