While the latest events headlined Gible and Cresselia ex, this time, they are putting the spotlight on Gen 9s Electric-type mouse: Pawmot
For better or worse, while this availability is very powerful, your opponents will know too
And you have to do it one card by one card
Plaza of Heroes does this beautifully by giving you a land that protects your commander
Starmie ex is one of these, as it costs 2 energy to attack, and can easily be accelerated by powerful supporter cards like Misty, which can accelerate energy to it
Hushbringer can stop everything from Dockside Extortionist to Blood Artist , so it might be worth running fewer of your own enters-the-battlefield creatures to deter certain powerful cards