Fractal ALL the Stolas!
Also, SoP.
I've considered that. Fractalling Stolas requires 4
each. That means with QTs, each tower produces 75% of a Stolas. Why would you do that when you could use emerald towers and each emerald tower produces half of a frog? 75% of a Stolas is a 1.5 attacker while half of a frog is a 2.5 attacker. Sure, fractalling it would protect your entire field, but under what circumstances would you dedicate so much quanta and hand space just for full permanent protection? Using SoP still has the flaws of SoP. SoP is slow and a stallbreaker, meaning you'd likely get outrushed if you were using a fractal Stolas SoP deck.