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Perhaps with Reenact the Crime legal in Standard, a deck will emerge even in that format built around Omniscience

In Commander, that question gets asked a lot

(3) When the second attack of this turn is declared: You can make this card gain 2500 ATK, and if you do, it gains this effect

If that brain cant figure out the secret of the serum, then add more brains. Rhmir, Hand of the Augur Illustrated by Stephan Martiniere Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp

This Commander is best built with an aggro strategy so you can continually attack with your growing army and assign a Ring-Bearer when it connects in combat

Spellbook of Knowledge is an option tho untested at time of writing