­Memoricide/Cranial Extraction that also hits that players nonland permanents on the field.

I'm pretty damn sure "exile target permanent and all other permanents its controller controls with the same name, ignore any and all rules about targeting permanents" is a) not a card that is printable and b) Not a card whose cost would just be 5 mana.

Hmm. Well, it's normally Eradicate, or Splinter after Argent Mutation. Better against multiples on the field, of course. Also serves as a preemptive Quash. And bypassing targeting restrictions (protection, shroud, hexproof) doesn't make it significantly more powerful, but is quirky.

Given that Utter End is four mana, I suspect this is a tiny bit cheap, but 6 mana seems very plausible. (I suspect development would try to make it target the permanents with that name though.)

Note that since blue gets around uncounterable spells with Summary Dismissal/Time Stop and black can get around untarget creatures far easier that blue can stop countable spells I really don't view the effect to getting around target restrictions as unprintable (black gets forced sacrifice, mass destructions and anti-tribal stuff). And Life's Finale gives you this effect as a board wipe. And Void

On the other hand I do really like how it gets arround targeting limits as emerges organically from the design, lines u[ with the rest of the cranial extraction effects and makes it feel more like your banning a card, which makes it feel more white. So it really feels like the card should get targeting restrictions.

Since this works like a Time Stop scale answer anything effect six mana feels like safer cost than five. Although that does it to slower to be used as a Cranial Extraction effect.

Anyone else want to give their thoughts?