Synergistic commanders for this creature are Blex, Vexing Pest because of its anthem effect of pumping spiders, among others, and Shelob, Child of Ungoliant, the best spider commander in MTG, because it gives spiders deathtouch and ward 2
so Vorinclex, Monstrous Raider is a new illustration for the Kaldheim praetor and is tournament legal where that card already is
This deck has a relative high amount of counter spells and targeted removal spells compared to any of my other decks, but I personally do not consider it an optimized control deck by any means
Mono Blue Tempo has some exceptionally solid permission cards and some dangerous clocks
Hall of Heliods Generosity, Academy Ruins, Volraths Stronghold, and Unholy Grotto are great if you can support them