Day/Night had done a good job of making it easy to remember what state the creatures were in, but everyone involved realized that it wasn't working
Discerning whether abilities or extra power and toughness are worth more is non-trivial, quite context-dependent, and likely will be the key to properly building decks based around this new take on the mechanic, as there are ways to use it to add more power to the battlefield
It can be used when the opponent wants to go for a lethal kill by saving your creatures and using this spell while also developing your board
Graded Population Report: Plusle #33 Visualize the distrbution of grades in the chart
It offers unmatched redundancy if one ramp piece gets removed, you have a dozen replacements and its land-based acceleration creates a permanent advantage that compounds over time
While you won't find Arbok's best cards in some of the most expensive Pokemon TCG sets, it has a few appearances in vintage expansions, including Expedition