It is a dynamic that mirrors what we see with vintage cards, where condition rarity drives premiums, but compressed into a much shorter timeframe and driven by production quality issues rather than decades of handling wear
Sailbacks are predators that lurk in lakes and rivers to ambush unwary prey
Celebrate the Harvest, 3G: a quick supply of many lands if you control creatures with different strengths
The overall power is high but the cost is broken down nicely so that you can access that power over time as suits best rather than having it trapped behind something prohibitively expensive
One of these cards is Blastoise ex, a tanky powerhouse of a Water-type Pokmon with 180 HP
If casting Armageddon demonstrates a lack of respect for other people's time, don't pretend it's not just as disrespectful to zone out when they're making their plays and force them to catch you up so you can counter something they played 2 spells ago