ghost type pokemon card Ghostly Gathering Playmat Apparition Assortment Gengar and a big crew of other Ghost Pokemon Ghost Sylveon

Just follow the instructions on the card

Raikou ex can be obtained from Paldean Wonders pack in the Paldean Wonders set

Besides Caesars obvious value as a 4/4 human soldier for 4 mana, its important to note that its effect triggers whenever you attack with any creature, not just Caesar

Along with dozens of Team Rockets Pokemon you also find Pokemon and Trainer cards featuring Cynthia, Arven, Marnie, Misty, Steven, and everyones favorite Johto Champion, Ethan

Then, if you need to draw a Dragonite VSTAR from your deck, you can always do it with an Evolution Incense

Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the creature will also work