To give examples of what that means, here are some instances of Nintendo reprinting old cards with rebalances or updates to either buff them to be usable with modern cards, or nerf them to stop them from being completely broken: Spoiler : As you can imagine, there are lot of Pokemon cards, and updating them all to comply with modern standards is quite the task
Stellas abilities may not be the most original in implementation, but she is cheap to cast, immediately impactful and has an infinitely high power ceiling
M2a: High Class Pack MEGA Dream ex
not that great, not even for Type Four, but if you are running a multiplayer game in Commander or Type Four or Five Color then this is very strong, and only requires a single Blue so it's easier to cast
Once sparked, Liliana, Defiant Necromancer can do her best at controlling the resources both players have access to, but too many decks in the format are already able to function with few things to do
This seemed to be a better way of keeping it in pristine condition, in my opinion