banette full art pokemon card 32/108 XY Roaring Skies Holo Rare NM holofoil pattern or surface detail) The Most Valuable Banette Cards

By the way, in my research for this, Kelly Digges at mtg.com did his own mathematics with a postal scale, and when I calculated out his result, he had 1816 grams

The Slug in his rocket can be seen in the bottom right of the card as he zooms through and messes up the flavor text

Soltari Monk Protection is a weird ability to tack onto a shadow creature, but at least Soltari Monk is safe from black removal spells

There are no rules here so long as the cards in question are legal for your format

Being able to put a massive restriction over which cards your opponents get to tutor can be absolutely game-breaking in a tutor-heavy format like EDH