After it became obvious that land destruction(s) will take place, almost certainly with collateral damage, Crucible of Worlds is necessary
Most famously, Collector Boosters feature the colored versions of the Traveling Chocobo cards, the iconic bird mounts from FF, each trading for a couple thousand dollars
For holographic cards, it is generally acceptable to have minor imperfections such as superficial scratching, print lines, or clouding
Examples: Combat finishers (Craterhoof Behemoth) Combos (Thassa's Oracle + Demonic Consultation) Alternate win cons (Approach of the Second Sun) Card Draw 8-10 cards Essential for maintaining card advantage and finding your win conditions
While Blogatog might lead us to believe that silver-bordered sets have a wide audience, I have a simple piece of (admittedly anecdotal) evidence to suggest the contrary: I Have Never Seen a Silver-Bordered Card in Play I've been playing since 1995 or so, and despite being an active Magic player in middle school, when Unglued came out, I have never bought a single pack of silver-bordered cards
