This sounds extreme, but you might want to protect your investment a little more than just double sleeving if you're playing with some really expensive cards like dual lands or Demonic Tutor
Adeline was an important card in the Standard format of the time, but it hasnt seen a huge amount of play since
The set symbol tends to be a sort of blue color for uncommon cards
While Rules Lawyer offers unique and powerful protection, it may not be the most efficient choice for competitive play due to its high mana cost and vulnerability to removal spells
2 Runo Stromkirk Lord Of The Deep Big Set-Up, Huge Payoff Runos in a weird spot since its none of the relevant KLOS creature types itself, isnt particularly good on its own, and adding black doesnt give you access to any additional KLOS creatures of note
Some cards also carry a letter suffix after the number