Fractal allows a player to spam creatures en-mass.
Right now, fractal can only be played 1 time per turn since it drains all of the owner's aether.
A little math background: number of fractals vs total creatures produced -
Note that each fractal after the first will take up 1 creature worth of hand space
1 fractal -> 8 creatures
2 -> 8 + 7 = 15
3 -> 8 + 7 + 6 = 21
4 -> 23 (cap)
Summoning 23 creatures will take a lot of quanta… none of which can be aether so a duo is required at minimum unless the creature's cost is 0.
There are 2 of these: photon and spark.
23 upgraded sparks is 69 damage unupgraded or 115 upgraded
23 photons… is 23 damage, but can allow a near impenetrable Hope shield
Both cases are very powerful. The ball lightening OTK seems to be the nastiest…
So, to pull off a ball lightening OTK you need
-1 ball lightening
-3 fractals in hand
-A way to cast the extra fractals
So means to cast aside, we need 4 cards to pull off the OTK!
Then, you need a way to cast all 3 fractals, bearing in mind that you lose all
after the first.
To do so with ante, you would need at least 2 chambers with 9 quanta each or 4 chambers with 5 quanta each
To get 2 chambers with 9 quanta requires:
-2 chambers
-discarding enough cards so that their total cost sums to 18 (upped) or 27 (unupped)
To get 4 chambers with 5 quanta requires:
-4 chambers
-discarding enough cards sl that their total cost sums to 10 (upped) or 15 (unupped)
A similar argument can be made for sky-blitz, but I'll leave that breakdown to someone else