This new rarity are English language exclusive, special treatments of existing cards
Learn the lessons of airbending, earthbending, firebending, and waterbending on cards like Aang, the Last Airbender, Toph, the Blind Bandit, Avatar Aang, and Katara, Water Tribe's Hope
Fuming Effigy Unlike other cards that may trigger only once when creatures leave your graveyard, you can use Fuming Effigy as a finisher to start pinging the whole table at once
Its best party trick, however, is building up an army before using Akki Battle Squad to trigger a surprise combat phase, while building up modified creatures will let you drop Walking Skyscraper for nothing if you time it right
Any EDH deck should always have a proper number of mana rocks, but in this case, you dont just want them as ways to ramp, but as ways to prepare for your own effects
That means if you have three or more of something, this is just an instant-speed blue tutor effect