Ibrido Alavuoto

Volare
Tossico 1 (I giocatori a cui viene inflitto danno da combattimento da questa creatura ottengono anche un segnalino veleno.)
Quando proliferi, riprendi in mano l'Ibrido Alavuoto dal tuo cimitero.

虚空翼の混種

飛行
毒性１（このクリーチャーから戦闘ダメージを受けたプレイヤーは追加で毒カウンター１個を得る。）
あなたが増殖を行なったとき、あなたの墓地にある虚空翼の混種をあなたの手札に戻す。

Híbrido alavacío

Vuela.
Tóxico 1. (Los jugadores que reciben daño de combate de esta criatura también obtienen un contador de veneno.)
Cuando proliferes, regresa el Híbrido alavacío de tu cementerio a tu mano.

Hybride vidaile

Vol
Toxique 1 (Les joueurs qui subissent des blessures de combat de cette créature gagnent aussi un marqueur « poison ».)
Quand vous proliférez, renvoyez l'Hybride vidaile depuis votre cimetière dans votre main.

Leerschwingen-Hybride

Fliegend
Toxisch 1 (Spieler, denen von dieser Kreatur Kampfschaden zugefügt wird, erhalten außerdem eine Giftmarke.)
Wenn du Wucherung durchführst, bringe den Leerschwingen-Hybriden aus deinem Friedhof auf deine Hand zurück.

Híbrido Asa-do-vazio

Voar
Tóxico 1 (Os jogadores que sofrem dano de combate desta criatura também recebem um marcador de veneno.)
Quando você proliferar, devolva Híbrido Asa-do-vazio de seu cemitério para sua mão.

虚翼杂蝠

飞行
下毒1（受此生物战斗伤害的牌手还会得到一个中毒指示物。）
当你增殖时，将虚翼杂蝠从你的坟墓场移回你手上。

Voidwing Hybrid

Flying
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
When you proliferate, return Voidwing Hybrid from your graveyard to your hand.

Phyrexia: All Will Be One

A player with ten or more poison counters loses the game. This is a state-based action and doesn't use the stack. In other words, it happens immediately and players can't respond to it, just like a player losing the game due to having 0 or less life.

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

Any other effects of that damage, such as life gain from lifelink, still apply.

Conversely, replacement effects that apply to the number of counters put on a player can modify the counters placed this way. For example, Vorinclex, Monstrous Raider's last two abilities can apply to counters placed this way.

Damage dealt by a creature with toxic grants the same number of counters regardless of how much damage is dealt. Notably, if a replacement effect modifies the damage in some way (such as that of Gratuitous Violence), the number of counters given remains unchanged.

If a creature with toxic deals combat damage to a creature or planeswalker, or if it deals noncombat damage, toxic has no effect and no player gets poison counters.

If a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.

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.

Multiple instances of toxic are cumulative. For example, if a creature has toxic 2 and gains toxic 1 due to another effect, combat damage that creature deals to a player will cause that player to get 3 poison counters.

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.

Toxic doesn't change the amount of combat damage a creature deals. For example, if a 2/2 creature with toxic 1 deals combat damage to a player, that creature will deal 2 damage. The results of that damage are the player loses 2 life and gets a poison counter.

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.