Be sure to have a healthy amount of Psychic Energy in your Discard Pile so that you are able to use Psychic Embrace
And while its in the GY, you can banish it to Fusion Summon 1 Fiendsmith Fusion Monster from your Extra Deck using monsters from your hand or field, which is especially great for accessing Fiendsmiths Lacrima , Fiendsmiths Desirae , or now Fiendsmiths Rex Tremende , which is easier to Fusion Summon post-new banlist
Thankfully, the answer to both these questions are quite simple
If you're excited to see and play with them in game, then good news: Prerelease events at local WPN game stores near you are your first chance to begin assembling your crew
To attack, attach a Double Turbo Energy to Meowscarada, and try to have a Grass Energy card in your hand
Level 7 or higher Synchro Monsters you control gain 400 ATK for each of your banished Level 7 or higher Synchro Monsters