This deck is extremely waiting on Evil★Twin's Trouble Sunny to be released, when it'll become much stronger.
The main focus is to create a position you can control the game from when going first, knocking down your opponent as they try and set up.
When going second the main goal is similar, but instead of preventing them from setting up you try and knock down what they've built. Eldlich and the Live☆Twin archetype synergize nicely together to grind the game out.
Sideboard's just cards I'm considering adding to the mainboard at current, not an actual suggestion.