A colorless blue/green deck (with many ways to get other colors) that releases lots of scions (with a few other tokens, maybe lots of thopters?).
A good first hand should have 3 or 4 lands so you'll be able to play most of the things in this deck without having to wait. Since this deck is huge at 90 cards it is moderately inconsistent (although about 15 tutors), but for casual play and for me that is a good thing since I will have more variation in my games.
Use Conduit of Ruin while
Deceiver of Form
is on the field to put Pathrazer of Ulamog or It That Betrays on top of the deck and annihilate your opponents. The more tokens you have, the more you can annihilate and overwhelm your opponent.
Because I am a defensive player, flying tokens are nice, and so are negate spells. Plus, it sucks when you spend a lot of mana on these guys and it all goes to waste (which is also why Kruphix, God of Horizons is extremely helpful if he is on the field). Always good to have a backup plan (not that you'll always be able to counter or anything, but it's nice to have it when you do).
There are no planeswalkers, but Jace, Unraveler of Secrets or Kiora (any version) can work with this. I just don't put them in here because... cost(?) and not entirely necessary.
Relentless with
Deathless Behemoth
.
Kozilek (although not the Butcher of Truth) will also be very helpful, since you'll probably draw 4 or more cards with him. Plus with the scions and Conduits of Ruin, he is not near as much of a hassle to get out.
Tomb of the Spirit Dragon
is very good for lifegain in this deck. Cryptolith Fragment
is good for slowly burning your opponents.
Uses for Progenitor Mimic:-- Copy Conduit of Ruin for 2 less cost per turn (that'll stack up quick, and let you cast free eldrazi once per turn).-- Copy Birthing Hulk or
Drowner of Hope
for 2 scions more per turn.-- Insurance for any other card I'd wanna keep on the field (
Deceiver of Form
for annihilator win,
Breaker of Armies
for enemy clearance, just any other big guy...).
Edits:-- One less Second Harvest and Progenitor Mimic since they were not used very much and clogged up the flow since they have larger mana cost. 2x Negate removed since I play casual, and negate can be a mean move (plus not always even used in this deck). All replaced with Brainstorm, which is perfect for if you have It That Betrays or Pathrazer of Ulamog in your hand, but
Deceiver of Form
on the field.