Arcane Adaptation +
Door of Destinies OR
Conspiracy + Door of Destinies
Arcane Adaptation OR
Conspiracy turns all creatures you own into a chosen type: Zombies. When
Door of Destinies enters the battlefield, chose Zombies as the creature type, and place a charge counter for each zombie cast onto the battlefield. Each charge counter counts as a +1/+1 on all creatures of the chosen type. Even
Muldrotha, the Gravetide can get in on the action.
Arcane Adaptation +
Rooftop Storm OR
Conspiracy + Rooftop Storm
With
Arcane Adaptation OR
Conspiracy making all creatures types: zombies,
Rooftop Storm can make the cost of casting all your creatures 0, thus casting all creatures in your deck for free, including the commander. Many of the expensive mana creature spells can now be cast for 0, so you aren't having to worry about tapping as much land once this combo is on the board
Arcane Adaptation OR
Conspiracy +
Door of Destinies +
Rooftop Storm +
Doubling Season
Arcane Adaptation OR
Conspiracy - All creatures are zombies.
Door of Destinies - All zombies cast to the battlefield generate a charge counter on Door of Destinies. Each counter gives +1/+1 to all zombie creatures.
Rooftop Storm - Allows the player to cast zombies for 0.
Doubling Season - Doubles the number of counters placed on a permanent
The Scarab God +
Arcane Adaptation OR
Conspiracy (+
Doubling Season)
At the beginning of your upkeep
The Scarab God causes
each opponent to lose X life for each zombie you control. With all your creatures and creature tokens being zombies due to
Arcane Adaptation OR
Conspiracy, and
Doubling Season doubling the number of creature tokens created, you could wipe out each opponents life in one turn
The Previous Combo +
Temporal Mastery + Any Tutor
Since
The Scarab God's ability activates at the beginning of your upkeep and you have all these Zombies and Zombie tokens out now, so instead of waiting for your next turn, go ahead and cast
Temporal Mastery (or a tutor if you need to track it down in your library), and you have a new beginning of your upkeep for
The Scarab God to do his dirty work
Lich Lord of Unx +
Arcane Adaptation OR
Conspiracy (+
Doubling Season)
Similar to the combo with
The Scarab God, except that instead of waiting until your next upkeep, you can cast
Lich Lord of Unx's mana ability and target a player who loses X life, where X is the number of Zombies you control
Liliana, Death's Majesty +
Arcane Adaptation OR
Conspiracy OR
Doubling Season
As already established,
Arcane Adaptation OR
Conspiracy makes all creatures types you own, Zombies.
Liliana, Death's Majesty adds a Zombie token (which would be doubled by
Doubling Season as previously mentioned), and can also destroy all non-Zombie creatures as her ultimate! Your army is safe from annihilation!
Arcane Adaptation +
Garruk, Cursed Huntsman OR
Conspiracy +
Garruk, Cursed Huntsman
Similar to the previous combo, Garruk can create two 2/2 black and green wolves (which is doubled by
Doubling Season) and all wolves become a zombie creature type
Darksteel Forge +
That Which Was Taken
This is an expensive mana combo, but if you can get it off, it's difficult to take down. Since both are colorless, you can use any combination of mana to cast, which makes it slightly easier.
Darksteel Forge makes all artifacts Indestructible, while a player can spend 4 mana and tap
That Which Was Taken (an artifact) to create a divinity counter that can be placed on a target permanent and make it Indestructible.
Darksteel Forge protects
That Which Was Taken, and
That Which Was Taken protects other permanents (i.e. Conspiracy, Rooftop Storm, Doubling Season, As Foretold, Mind Unbound). While this may seem redundant with Muldrotha on the field, this is a good mid to late game strategy to keep key spells in play.
Rampage of the Clans +
Doubling Season +
Darksteel Forge +
That Which Was Taken
In the event that you manage to get the
Darksteel Forge and
That Which Was Taken combo out,
Rampage of the Clans is a great way to get tokens out! For each enchantment and artifact you destroy (yours are safe with the previous combo), you create a 3/3 green Centaur creature token.
Doubling Season then doubles the number of tokens created! If you can pull this combo out with the
Lich Lord of Unx or
The Scarab God combos earlier, you get to watch your opponents become angsty Anakin Skywalker right before your very eyes!
Endless Ranks of the Dead +
Doubling Season +
Arcane Adaptation OR
Conspiracy
Thank you
multimedia for this suggestion! If all creatures become zombies, then at the beginning of my upkeep
Endless Ranks of the Dead technically doubles the number of zombies on the battlefield. Where
Endless Ranks of the Dead would half the number of zombies tokens created per zombie on the battlefield (rounded down),
Doubling Season would double those tokens, effectively doubling my creatures on the battlefield
Mind Unbound +
Reliquary Tower
Draw cards equal to the number of lore counters on
Mind Unbound (which adds a lore counter at the beginning of your upkeep, and 2 counters if
Doubling Season is in play).
Reliquary Tower ensures that you have no maximum hand size
The Previous Combo +
Arcane Adaptation OR
Conspiracy +
Rooftop Storm
The more cards you draw, the more creatures enter your hand, which can be played for 0. If
Door of Destinies is on the field, counters get added for each zombie, which becomes +1/+1 counters for your creatures. If
Doubling Season is in play as well, all counters placed on
Door of Destinies double!