Improvisation Capstone (Borderless - Field Notes) Modern Horizons 3 you may have this enchantment

you may have this enchantment become a copy of it

Then if you control five or more Ninjas

Fuse (You may cast one or both halves of this card from your hand

that player exiles the top card of their library

Whenever you play a land from exile or cast a spell from exile

Improvisation Capstone (Borderless - Field Notes) Modern Horizons 3 you may have this enchantmentExile cards from the top of your library until you exile cards with total mana value 4 or greater. You may cast any number of spells from among them without paying their mana costs. Paradigm (Then exile this spell. After you first resolve a spell with this name, you may cast a copy of it from exile without paying its mana cost at the beginning of each of your first main phases.)