While that will work in a plethora of decks, it particularly helps aggro basic Pokemon decks that like to move fast
Have you been building and playing with MDFCs in Commander
When you have cards like Skull Guardian, Protector of the Voiceless Voice or Legacy of Destructions new Ritual monster, Saffira, Divine Dragon of the Voiceless Voice, thats not a bad thing - particularly considering Skull Guardian's negation and destruction effect can stop a flourishing combo in its tracks.
Partner Commanders Partner commanders like Thrasios, Triton Hero, Tymna the Weaver, Kraum, Ludevic's Opus, and Vial Smasher the Fierce are some of the strongest legendary creatures ever printed for multiplayer
This means that cards that care about prevented damage, like Questing Beast, dont interact with this damage
Erika, Potion, and Giant Cape all help to make your Pokemon even tankier than they already are, and that should help you survive most of the Darkrai Ex onslaught