You can cast spells only during your turn and you can cast no more than two spells each turn. You may cast spells with mana value less than or equal to the number of lands you control without paying their mana costs.
"Just tell us how many you want and get out of the way."
![Fires of Invention [Throne of Eldraine]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/605fe33e-8d57-5731-ace3-95df3253f9e4.jpg?v=1698562862&width=1445)