You have the Burnished Hart, and Solemn Simulacrum and the Duplicant
First, it could be a huge mana ramp for the casting player , as you'll be able to attack the turn it comes into play and then tap all your land for double mana at the cost of that much damage
Green Big strong creatures and enchantments Mono decks are a great place to start learning how each colour works so that when you come up against them you have an understanding of how to counter and control your opponent
When Asmoranomardicadaistinaculdacar enters, you may search your library for a card named The Underworld Cookbook, reveal it, put it into your hand, then shuffle
This gives us all the mana to keep the fun flowing
Metallic Mimic can be a low-drop creature in a treefolk deck, as an example of a generic typal card you could easily slot in