Pleasantly surprised, because, you see, I loved this mechanic
Like most Magic: The Gathering cards, the value of Arvad of the Weatherlight depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Unknown Event)
If the land you played or spell you cast shares a mana value with multiple digits in the chosen number, cross only one of those digits out each time Duelists' Convocation International's last ability resolves
As a good rule of thumb, the Commander 2020 decks all play well together
Split cards also include the aftermath cards released in the Amonkhet block, though they have some extra rules complications
Outlast only as a sorcery.) Modified creatures you control have lifelink