It is one of the few modern gold cards that puts a Pokemon and its trainer in the same frame with a real story behind it
While its always hard to prepare defenses against every possible angle of attack, the all-purpose counterspell and card-selection of blue draw spells gives you the best possible chance
Im Going Home
Named characters are better for brand recognition though, so I think we should expect a ton of legendary creatures in UB sets from here on out
The other parts you need are simply a zero-cost sacrifice outlet and some effect that can place a +1/+1 counter on creatures as they enter the battlefield: Grumgully, Path of Discovery, Juniper Order Ranger, or Rhythm of the Wild for example
It might not be a one-mana spell like Ephemerate, but it's cheap, has a bonus, and doesn't wait until the next end step to bring the creature back, so this is definitely one to watch out for