The decklist for Creative Energy has a few pretty pricey cards like Akroma's Will and Farewell, which are potential staples of their respective mana bases
(2) this is a very weak argument even if you know that the opponent will try to mill you: using anti-mill cards is much better instead
Ashiok, Dream Render Ashiok, Dream Render is a nice utility planeswalker, locking opponents from searching their libraries
You won't draw a card even if another creature has died this turn
Galarian Perrserker has the following abilities: Dig Up: Once during your turn, when you play this card from your hand to evolv 1 of your Pokmon, put 2 random Pokmon Tool cards from your dicard pile into your hand What attacks does Galarian Perrserker have
Firstly, it's easier to spot a big splashy card that might be good and/or funny in Commander than pinpoint a big player for a more competitive format