It was originally one of the main reasons for the banning of Cauldron Familiar, which could be repeatedly sacrificed with Witchs Oven to cause Mayhem Devil to trigger several times, destroying an opponents board and their life total with no way to respond
Conversely, for those that mostly want to play, card type will be most useful
This isnt the only way you can build Muldrotha, however
They can do good work when synergizing with other enters effects found on this list, and their downsides are mitigated when you can Blink them at instant speed
In other cases, they do not have overlap, but the names are changed, which can feel off-putting for someone getting into the Pokmon Trading Card Game for the first time
Or does Destiny Bond clear when Gastly moves to the Bench