Copy of: Muldrotha (EDH / Commander)

The deck started as a super casual deck for Muldrotha the Gravetide, with just the cards I had. Then I improved on it, yet without looking for actual competitivity, and there it is now.

At some point, its wincon became the instant win brought by Primal Surge when the deck is only permanents and contains a Labman-like (here Jace, Wielder of Mysteries). The deck thus tries to control its way till it can cast Primal Surge, putting the whole library on the battlefield and instantly win through the static ability of Jace, Wielder of Mysteries (for a card will be drawn, either because of a trigger when all the crap enters the battlefield or because of the plus ability of Jace, Wielder of Mysteries.)

An accidental combo was discovered with cards introduced for other purposes, which were Altar of Dementia (added to self-mill, which is almost like draw), Mazirek, Kraul Death Priest (which would have ended out of the deck without this combo existing) and Glen Elendra Archmage (there because of its use as a reusable counter-spell). The combo consists in sacrificing Glen Elendra Archmage to Altar of Dementia, and then ordering triggers from Persist and Mazirek, Kraul Death Priest so that Persist brings Glen Elendra Archmage back, then the +1/+1 counter from Mazirek, Kraul Death Priest removes the -1/-1 counter from Persist. Glen Elendra Archmage can then be sacrificed indefinitely until the opponents are milled to death.

The combo also works when replacing Glen Elendra Archmage with River Kelpie, and/or by replacing Mazirek, Kraul Death Priest with Mikaeus, the Unhallowed (this time, you simply alternate between Persist and Undying since both persistent creatures are non-Human). Those cards were also introduced for other purposes, respectively to draw cards and to protect the deck's creatures, for only a handful of them are Humans.

Altar of Dementia can be replaced with Greater Good, but only if Jace, Wielder of Mysteries is on the battlefield. Then it's possible to draw the entire library to win with its static ability. It's also possible to self-mill entirely with Altar of Dementia to then draw with Jace, Wielder of Mysteries to win.

Everything else in the deck is used either to control opponents' plays, generate Card Advantage to get the other cards as fast as possible, ramp to reach 10 mana faster, tutor for the combos, or protect the commander (or something else, sometimes).