
Nice Yamiruler deck! (Does not play Yamiruler)
I've been toying around with Spectral Squall and it's interesting, I'm guessing the little boosts/buffs are just to calibrate around most boss monsters having 2500 ATK, and just rely on Talisman for Maximum? Once the Icezark loop gets going it does feel pretty easy to make sure you have a 3000 & 2500 ATK monster each turn, but it feels really vulnerable if you end up going first.

Late reply but yeah, the main point is to be able to beat over bosses but stuff like mage, essel, bolt, and speedy are meant to mill in hopes to find your high warrior so your icezark is live on the first summon. Card such as Thunder the Thunder and TTTD is to get rid of your high warrior bricks and to also help get icezark live earlier. And yes the seal array is for the max because the deck has no other out to that besides TTTD. The deck just struggles with icezark being 2000 and that is a bad statline for a level 7, meaning you lose a lot on damage output