If you don't think Mother of Runes is too strong for standard, you really shouldn't be commenting on whether things are too strong for standard until you've got more experience under your belt.
The card is completely absurd and nowhere near an acceptable power level for Modern or Standard. And this isn't a close call.
Based on what exactly? Legacy, where only one of the top 5 spells played is removal(and it's abrupt decay at 5 vs Path/Bolt at 1/2 in Modern? Urza Period Standard, which was full of broken degenerate shit? Commander, where it's a 1 of in the 99?
I'm not seeing where it's this big taboo in Modern/Standard, which are literally full of removal/answers.
Mother of Runes is STUPID good for Standard. It would never get reprinted.
It makes blockers immune to damage, threats immune to removal, blockers unblockable, etc.
It's insane.
Yeah at a rate of one creature per turn cycle. That's not this big insane "OP" metric, not at all. Again, Mother of Runes can't grant pro-colourless, and Kaladesh is littered with Artifact chump blockers.
The idea that it would be "too good" for the electrostatic pummeler deck ignores that it's the complete opposite of what the deck wants. It doesn't make energy, doesn't increase power, or is a good attacker.
1. Gameplay will ALWAYS trump Flavor/Story. It's why you got a Ludvic that doesn't do anything in the flavor of it's character, it's the reason why you didn't get Inquisition of Kozeliek in OGW when it would have fit the story, ect.
2. Outside of the Mountain accidentally included in Arabian Nights, Felidar Soverign and Dragonspeaker Shaman in Battle for Zendikar and the entirety of the Timeshifted sheet in Time Spiral, they never re-use art in expansion sets. If they were reprinting this card, it would need new art.
3. Even outside of absurd power level in constructed, it also violates their rule of on-board tricks in Limited. We don't get Samite Healer anymore, on the RARE occurances of Angelic Page getting printed it's at Uncommon (I believe that since NWO, only Anoiter of Champions in Magic Origins has been printed, and this one can't be used on blockers). Granting Protection at will is an absurdly complicated on board trick that I would only print at Mythic Rare in a normal expansion I expect drafted at FNM
1. Both of those reasons are hot dogshit for excuses. Ludevic is the result of Wizards having their heads up their asses ala Ulrich where they hear the demand for something and then fuck it up hard while they misunderstand what people actually want. Inquistion by all means should have been in Oath, considering they literally had two Eldrazi followers in black, so their excuse of "Devoid!" is a bad excuse.
2.Wrong. If we're counting reused artwork, Ranger's Guile, Chief of the Foundry, Hamlet Captain are all reprints that used the original art, and that's all I could name off of the top of my head. They do reuse art in expansions.
3. Yeah, it'd be strong in limited but I'm not quite sure it's any more of a bomb then stuff we've had in recent sets. Again, it's a 1/1 that can nullify removal. Judging by its appearance in EMA, it's likely it would be at Rare or Mythic.
I want to make the Fabricate deck work.
Nissa+The White Fabricate Angel+ Gideon+Bounce your own dudes= Value Town.