Cleave

Cleave is a keyword ability introduced in Innistrad: Crimson Vow. It can only be found on instants and sorceries, offering an alternative cost.
==Description==
Cleave means “to cut”. The mechanic cuts text. The introduction of cleave was foreshadowed in the 2020 Mystery Booster test card <c>Graveyard Dig</c>, which was first concepted by Linus Ulyssus Hamilton during the Great Designer Search 3.
When casting a card with cleave, you can cast it for its mana cost as normal. If you do, the spell's effect is processed as normal. That is, every single word of its rules text is followed, just like you'd expect.
But if you opt to pay the cleave cost rather than the mana cost, you can ignore all the words in brackets. This will change some key aspect of the effect. For most of them, cleaving the spell deletes the qualifying adjectives, broadening the range of impact. 
No matter how you cast a card that has cleave, the resulting spell's color and mana value are both based on the spell's mana cost. Specifically, Dig Up is a green spell with mana value 1, even if you choose to cast it for its cleave cost ().
===History===
Ari Nieh designed Cleave in Streets of New Capenna exploratory design. Called "Misconduct," it was tested as the mechanic for the Brokers, who were initially concepted as corrupt police officers. As it didn’t end up in the final set, Mark Gottlieb suggested it to Adam Prosak for Crimson Vow’s use.
==Rules==
==Rulings==
*If you cast a spell for its cleave cost, that spell doesn't have any of the text in square brackets while it's on the stack.
*A cleave cost is an alternative cost that's paid instead of the spell's mana cost. Casting a spell for its cleave cost doesn't change the spell's mana value.
*You can't cast a spell for both its cleave cost and another alternative cost. For example, if an effect gives an Alchemist's Retrieval in your graveyard a flashback cost of , you can't cast it from your graveyard for its cleave cost.
*If an effect allows you to "cast a spell without paying its mana cost," you can't cast that spell for its cleave cost.
==Examples==
==Multicleave==
The Mystery Booster 2 test card introduced "Multicleave" (You may pay an additional any number of times as you cast this spell. For each time you do, choose a paired set of square brackets and remove the words in between.)
==References==