Xavier Sal, verseuchter Kapitän

{T}, entferne eine Marke von einem anderen Permanent, das du kontrollierst: Führe Bevölkern durch. Aktiviere diese Fähigkeit wie eine Hexerei.
{T}, opfere eine andere Kreatur: Führe Wucherung durch. Aktiviere diese Fähigkeit wie eine Hexerei.

Xavier Sal, capitaine infesté

{T}, retirez un marqueur d'un autre permanent que vous contrôlez : Peuplez. N'activez que lorsque vous pourriez lancer un rituel.
{T}, sacrifiez une autre créature : Proliférez. N'activez que lorsque vous pourriez lancer un rituel.

寄生された船長、ザビエル・サル

{T}, あなたがコントロールしていてこれでないパーマネントの上からカウンター１個を取り除く：居住を行う。起動はソーサリーとしてのみ行う。
{T}, これでないクリーチャー１体を生け贄に捧げる：増殖を行う。起動はソーサリーとしてのみ行う。

菌变船长哈维萨尔

{T}，从另一个由你操控的永久物上移去一个指示物：殖民。只能于法术时机起动。
{T}，牺牲另一个生物：增殖。只能于法术时机起动。

Xavier Sal, Infested Captain

{T}, Remove a counter from another permanent you control: Populate. Activate only as a sorcery. (Create a token that's a copy of a creature token you control.)
{T}, Sacrifice another creature: Proliferate. Activate only as a sorcery. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

The Lost Caverns of Ixalan Commander

{T}, Remove a counter from another permanent you control: Populate. Activate only as a sorcery.
{T}, Sacrifice another creature: Proliferate. Activate only as a sorcery.

An ability that triggers "Whenever you proliferate" triggers even if you chose no permanents or players while doing so.

If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.

Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.

To proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.

You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to. Since "any number" includes zero, you don't have to choose any permanents at all, and you don't have to choose any players at all.

Any enters-the-battlefield abilities of the copied token will trigger when the new token enters the battlefield. Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the copied token will also work.

If you choose to copy a creature token that's a copy of another creature, the new creature token will copy the characteristics of whatever the original token is copying.

If you control no creature tokens when you populate, nothing will happen.

Populate doesn't target the creature token you're copying. You choose that creature token as you're taking the populate action. You can choose any creature token you control. If a spell or ability causes you to create a creature token and then instructs you to populate, you may choose to copy the token you just created, or you may choose to copy another creature token you control.

The new creature token copies the characteristics of the original token as stated by the effect that created the original token.

The new token doesn't copy whether the original token is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any noncopy effects that have changed its power, toughness, color, and so on.