The return of Legendary Pokmon like Dialga and Palkia mesh well with the new VSTAR mechanics that have been created since the release of Pokmon Diamond and Pearl
Several Rank 9s are on DP for whatever reason, so you could use those with Level 4s, Level 5s could run Dora (Number 81 I believe) to protect their field or Gustav Max to finish off the game, Level 3s could get 62 or 107 for extreme comeback purposes, 2s could run Big Eye cause it's Big Eye, and 1s could get free recovery off M7
Cards related to "Full Art/Charizard V".
Example: If you attacked and your opponent's creatures are strong, ending your turn is like saying, "I'm done for now, let's see what you do." Instant Spells Saving instant spells for your opponent's turn lets you react
Corners may have one or more issues like fraying
The short answer is no, Commander doesn't have a sideboard