Overcharged Amalgam has all of this and more: its exploit ability is an instant-speed sacrifice outlet, and it gets around cards like Negate and Dovins Veto
Im most excited to see it do work in Lathril, Blade of the Elves, though
It presents a core with a clear strategy you can upgrade over time simply by adding hero cards to it
you gain 2 lore
If you decide to keep her away from the action, she can quest for a single lore - but, again, with the right cardplay, you might be able to send her questing multiple times in the same turn, stacking up a bigger pile of lore
Unfortunately, Wizards of the Coast doesn't attach a defined MSRP to their Commander products, so theres some room for demand-based price inflation