Unless they're absolutely egregious (like Nadu, Winged Wisdom), cards should no longer go directly from legal to banned, and instead will go from legal to Game Changer
This enchantment has many applications, but what you should be excited about are these: Commanders like Kykar, that generate creature tokens from the Command Zone
If so, they can pay life and mana to draw cards anytime a friendly Elf dies
This video was framed as a "variety show" featuring many Magic celebs both in R&D and on the professional player circuit, as well as a fair amount of bloggers from international Magic communities
Some Energy cards have to be decent on their own, otherwise Energy is a completely parasitic mechanic on a bunch of weak cards that need each other in order to do anything
The former are typically made when players dont own a card thats not feasible to get, like Black Lotus or any Power 9 card for that matter or for more authentic playtesting