Cloven Casting — ruling 1

This ability triggers only once for each multicolored instant or sorcery spell you cast. You can’t use a single Cloven Casting to copy the same spell twice.

Cloven Casting — ruling 2

You can copy the spell that caused Cloven Casting’s ability to trigger even if it’s been countered by the time that ability resolves.

Cloven Casting — ruling 3

The copy will have the same targets as the spell it’s copying unless you choose new ones. You may change any number of the targets, including all of them or none of them. The new targets must be legal.

Cloven Casting — ruling 4

If a modal spell is copied, the copy will have the same mode as the original.

Cloven Casting — ruling 5

Abilities that trigger when a spell is cast (such as this ability or cascade) won’t trigger when you create a copy this way.

Cloven Casting : règles, fonctionnement et interactions (MTG)

Cloven Casting is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Whenever you cast a multicolored instant or sorcery spell, you may pay . If you do, copy that spell. You may choose new targets for the copy.

How it works : Cloven Casting

Original English text — Wizards of the Coast / Scryfall

#1May 1, 2009· Wizards of the Coast
This ability triggers only once for each multicolored instant or sorcery spell you cast. You can’t use a single Cloven Casting to copy the same spell twice.
No other card is named in this ruling.
#2May 1, 2009· Wizards of the Coast
You can copy the spell that caused Cloven Casting’s ability to trigger even if it’s been countered by the time that ability resolves.
No other card is named in this ruling.
#3May 1, 2009· Wizards of the Coast
The copy will have the same targets as the spell it’s copying unless you choose new ones. You may change any number of the targets, including all of them or none of them. The new targets must be legal.
No other card is named in this ruling.
#4May 1, 2009· Wizards of the Coast
If a modal spell is copied, the copy will have the same mode as the original.
No other card is named in this ruling.
#5May 1, 2009· Wizards of the Coast
Abilities that trigger when a spell is cast (such as this ability or cascade) won’t trigger when you create a copy this way.
No other card is named in this ruling.