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
Once youve sorted your cards into evolutionary groups, decide how you want to arrange them, such as alphabetically
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
In a singleton format you have to run a set of cards that all fulfill the same basic function, so instead of running 4 copies of Harmonize, you might run Harmonize, Greater Good, Beast Whisperer, Return of the Wildspeaker, Garruk, Primal Hunter, Shamanic Revelation, Soul's Majesty and Rishkar's Expertise
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