Ignite the Cloneforge! — ruling 1

You can target any permanent an opponent controls, not just a creature.

Ignite the Cloneforge! — ruling 2

The token that's put onto the battlefield copies exactly what's printed on the targeted permanent (unless that permanent is copying something else or it's a token; see below). It doesn't copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras attached to it, or whether it's been affected by any noncopy effects that changed its power, toughness, types, color, or so on.

Ignite the Cloneforge! — ruling 3

If the targeted permanent is copying something else when the ability resolves (for example, if it's a Clone), then the token enters as a copy of whatever that permanent is copying.

Ignite the Cloneforge! — ruling 4

If the targeted permanent is a token, the new token copies the characteristics of the original token as stated by the effect that put it onto the battlefield.

Ignite the Cloneforge! — ruling 5

If the targeted permanent has {X} in its mana cost (such as Protean Hydra), X is considered to be zero.

Ignite the Cloneforge! — ruling 6

Any "enters" abilities of the targeted permanent will trigger when the token is put onto the battlefield. Any "as [this permanent] enters" or "[this permanent] enters with" abilities of that permanent will also work.

Ignite the Cloneforge! — ruling 7

If the targeted permanent leaves the battlefield before the ability resolves, the ability doesn't resolve. You don't get a token.

Ignite the Cloneforge! — ruling 8

If the targeted permanent is an Aura, you choose a legal permanent, player, or other card for the token to enchant as it enters. A permanent you choose must be able to be enchanted by the token. (For example, if the Aura it's copying is red and has "enchant creature," the permanent must be a creature, and it can't have protection from red.) Since the token Aura wasn't cast as a spell, it doesn't target what it will enchant; you may choose something that has shroud, for example. As the ability resolves, no player can respond between the time you choose what the token will enchant and the time it enters. If you can't choose something for the token to enchant, it enters unattached, then is put into your graveyard as a state-based action.

Ignite the Cloneforge! : règles, fonctionnement et interactions (MTG)

Ignite the Cloneforge! 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

When you set this scheme in motion, create a token that's a copy of target permanent an opponent controls.

How it works : Ignite the Cloneforge!

Original English text — Wizards of the Coast / Scryfall

#1June 15, 2010· Wizards of the Coast
You can target any permanent an opponent controls, not just a creature.
No other card is named in this ruling.
#2June 15, 2010· Wizards of the Coast
The token that's put onto the battlefield copies exactly what's printed on the targeted permanent (unless that permanent is copying something else or it's a token; see below). It doesn't copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras attached to it, or whether it's been affected by any noncopy effects that changed its power, toughness, types, color, or so on.
Card named in this ruling
Copy
#3June 15, 2010· Wizards of the Coast
If the targeted permanent is copying something else when the ability resolves (for example, if it's a Clone), then the token enters as a copy of whatever that permanent is copying.
Card named in this ruling
Copy
#4June 15, 2010· Wizards of the Coast
If the targeted permanent is a token, the new token copies the characteristics of the original token as stated by the effect that put it onto the battlefield.
No other card is named in this ruling.
#5June 15, 2010· Wizards of the Coast
If the targeted permanent has in its mana cost (such as Protean Hydra), X is considered to be zero.
No other card is named in this ruling.
#6June 15, 2010· Wizards of the Coast
Any "enters" abilities of the targeted permanent will trigger when the token is put onto the battlefield. Any "as [this permanent] enters" or "[this permanent] enters with" abilities of that permanent will also work.
No other card is named in this ruling.
#7June 15, 2010· Wizards of the Coast
If the targeted permanent leaves the battlefield before the ability resolves, the ability doesn't resolve. You don't get a token.
No other card is named in this ruling.
#8June 15, 2010· Wizards of the Coast
If the targeted permanent is an Aura, you choose a legal permanent, player, or other card for the token to enchant as it enters. A permanent you choose must be able to be enchanted by the token. (For example, if the Aura it's copying is red and has "enchant creature," the permanent must be a creature, and it can't have protection from red.) Since the token Aura wasn't cast as a spell, it doesn't target what it will enchant; you may choose something that has shroud, for example. As the ability resolves, no player can respond between the time you choose what the token will enchant and the time it enters. If you can't choose something for the token to enchant, it enters unattached, then is put into your graveyard as a state-based action.
Card named in this ruling
Copy