then you'll love that Kamigawa fluff retcon'd long established Phyrexian fluff.
To be fair I think the lore is that this stupid thing
Is what allowed it to happen, and Kamigawa is a fucked up enough place* that a Jellyfish being capable of rewriting reality is within reason, Given the fact that it is a "creature" it is probably inhabited by some sort of reality warping spirit that Jin-Gitaxis used to tweak the rules of reality just enough to Phyrexianize Tamiyo.
They have done far dumber shit in the bad storylines...and even have done dumber things in good storylines, like Tarkir was pretty cool but "Sarkhan rewriting the past ONLY affecting Tarkir and no other planes" was pretty fucking stupid.
Apologies to the Tamiyo fan
Lorewise Tamiyo was kind of a Cunt most of the time, she was 2/2 for wanting to sit on her ass and observe apocalypses instead of helping until it became a personal problem for her. (well the first time she helped cause Jace annoyed her into it) and IIRC in Eldritch Moon she was gonna unleash the Spell that Urza used to kill Mishra...and would have ended up killing multiple planes if not for Freyalize undoing the Shard, and only didn't because Emrakul was like "Uh..NO WHAT THE FUCK YOU DUMB SLUT?"
*Reminder the last time we went to Kamigawa, An Ogre summoned a Demon God to kill a bunch of Moonfolk..and when it Noped out when THE BIGGEST DICKED GOD ON THE PLANE showed out..he took it personally and asked Toshiro to send him to hell so that he could kill and replace said God because he felt disrespected that he worshiped something that wasn't the literal soul of the plane.
Now I love Hidetsugu, and I love that he was metal enough to kill and replace his god. However..O-Kagachi would have kicked it's ass 8 ways from Sunday without trying.
I also find the device by zero of to be a strange ban. why not the hullbreaker?
Hullbreaker is largely okay for it's mana cost 7 Mana should probably win you the game in Standard if you live long enough to actually cast it. (or don't get it discarded)
Divide by Zero is in the ballpark of Remand and Remand would be way too powerful for Standard, given that it can edge out Counterspell itself depending on the Deck in Modern.
Edit : Also in hilariously shitty news.
Star City Games has apparently Canceled VS Live after years of it going weekly because "High End Competitive magic" is no longer popular enough to profit off of writing articles/making Videos over.
Good Job Maro, you literally made your Esport..unpopular as an Esport.