Throat Wolf — ruling 1

“Summon” isn’t a card type. Throat Wolf is a creature.

Throat Wolf — ruling 2

As the declare blockers step ends, if any creatures have firstest strike, there’s an additional combat step where only those creatures deal damage. The game waits until after this step to determine whether there will be a first-strike combat damage step.

Throat Wolf — ruling 3

If a creature with firstest strike enters the battlefield during the firstest-strike combat damage step or the first-strike combat damage step, it deals regular combat damage instead.

Throat Wolf — ruling 4

If a creature with firstest strike gains first strike, it deals damage during the first strike and firstest strike combat damage steps. If it gains double strike, it deals damage during all three combat damage steps.

Throat Wolf — ruling 5

Throat Wolf’s last ability reads like it’s pointless. Only Throat Wolf can attack, but it can’t attack, so nothing can attack. Rather than assume the text is pointless, this ability should be played as though it read “After each opponent’s first combat phase on each turn, you have a combat phase. Only Throat Wolf can attack during that combat phase.”

Throat Wolf — ruling 6

While it’s your combat phase during your opponent’s turn, you’re the active player and the attacking player. However, any rules or effects that check whose turn it is will still know that it’s your opponent’s turn.

Throat Wolf — ruling 7

If two players each control Throat Wolf, player A’s first combat phase will be followed by player B’s first combat phase from B’s Throat Wolf, which will be followed by player A’s second combat from A’s Throat Wolf. On player C’s turn (where C is the active player and player A is the next player in turn order) player C’s combat phase is followed by player A’s combat phase, then player B’s combat phase following player A’s, then player A’s following player B’s, then player B’s that follows player C’s finally happens.

Throat Wolf : règles, fonctionnement et interactions (MTG)

Throat Wolf 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

You may cast Throat Wolf during an opponent's combat phase. Firstest strike (This creature deals combat damage to creatures before creatures with first strike.) After each opponent's first combat phase of each turn, there is an additional combat phase. Only Throat Wolf can attack during that combat phase.

How it works : Throat Wolf

Original English text — Wizards of the Coast / Scryfall

#1November 12, 2019· Wizards of the Coast
“Summon” isn’t a card type. Throat Wolf is a creature.
No other card is named in this ruling.
#2November 12, 2019· Wizards of the Coast
As the declare blockers step ends, if any creatures have firstest strike, there’s an additional combat step where only those creatures deal damage. The game waits until after this step to determine whether there will be a first-strike combat damage step.
No other card is named in this ruling.
#3November 12, 2019· Wizards of the Coast
If a creature with firstest strike enters the battlefield during the firstest-strike combat damage step or the first-strike combat damage step, it deals regular combat damage instead.
No other card is named in this ruling.
#4November 12, 2019· Wizards of the Coast
If a creature with firstest strike gains first strike, it deals damage during the first strike and firstest strike combat damage steps. If it gains double strike, it deals damage during all three combat damage steps.
No other card is named in this ruling.
#5November 12, 2019· Wizards of the Coast
Throat Wolf’s last ability reads like it’s pointless. Only Throat Wolf can attack, but it can’t attack, so nothing can attack. Rather than assume the text is pointless, this ability should be played as though it read “After each opponent’s first combat phase on each turn, you have a combat phase. Only Throat Wolf can attack during that combat phase.”
No other card is named in this ruling.
#6November 12, 2019· Wizards of the Coast
While it’s your combat phase during your opponent’s turn, you’re the active player and the attacking player. However, any rules or effects that check whose turn it is will still know that it’s your opponent’s turn.
No other card is named in this ruling.
#7November 12, 2019· Wizards of the Coast
If two players each control Throat Wolf, player A’s first combat phase will be followed by player B’s first combat phase from B’s Throat Wolf, which will be followed by player A’s second combat from A’s Throat Wolf. On player C’s turn (where C is the active player and player A is the next player in turn order) player C’s combat phase is followed by player A’s combat phase, then player B’s combat phase following player A’s, then player A’s following player B’s, then player B’s that follows player C’s finally happens.
No other card is named in this ruling.