trading cards sleeves 1200 Pack Card Sleeves, Matte Dual Card with Opaque Back & Smooth Shuffle, Tear Resistant Card Protectors for MTG, TCG and Game (12 Colors) : Toys & Games or other trading cards like Magic The Gathering Fanatics Thick Soft Sleeve Bundle

Gisela is what Id affectionately call the Boros Praetor. Much like Elesh Norn, Vorinclex and their ilk, Gisela provides a magnification of an effect for you, and a nerf to the same effect for opponents

At least it's nice to be able to get this Mimikyu in cosmo foil now

As a rule of thumb, it's always harder to cast spells that require two the same color mana to cast in deck running more than one color

Litten can be obtained from Mega Rising: Mega Gyarados pack in the Mega Rising set

or Wizards finding a way to create more reprint equity (with the most likely being to support a new Frontier-like format at some point in the future, which would increase demand for a lot of new-ish cards that aren't quite good enough to be Modern staples)

Don't grade if the error is on a low-value card (grading costs more than it's worth) or you're selling to dedicated misprint collectors