"Learn all you can of this underground sea. I suspect more secrets of our ancestors lie waiting in its depths."
—Tishana

„Lernt, so viel ihr könnt, aus diesem unterirdischen Meer. Ich ahne, dass weitere Geheimnisse unserer Vorfahren in seinen Tiefen auf uns warten."
—Tishana

Meervolk-Höhlentaucherin

Immer wenn eine Kreatur, die du kontrollierst, erkundet, erhält die Meervolk-Höhlentaucherin +1/+0 bis zum Ende des Zuges und kann in diesem Zug nicht geblockt werden.

"Aprende todo lo que puedas de este mar subterráneo. Creo que sus profundidades albergan más secretos sobre nuestros ancestros".
—Tishana

Tritona buceacuevas

Siempre que una criatura que controlas explore, la Tritona buceacuevas obtiene +1/+0 hasta el final del turno y no puede ser bloqueada este turno.

« Apprenez tout ce que vous pouvez sur cette mer souterraine. Je soupçonne que bien d'autres secrets de nos ancêtres nous attendent dans ses profondeurs. »
—Tishana

Spéléoplongeuse ondine

À chaque fois qu'une créature que vous contrôlez explore, la Spéléoplongeuse ondine gagne +1/+0 jusqu'à la fin du tour et ne peut pas être bloquée ce tour-ci.

"Scopri tutto ciò che puoi su questo mare sotterraneo. Credo che nelle sue profondità si nascondano molti altri segreti dei nostri antenati."
—Tishana

Tritona delle Caverne

Ogniqualvolta una creatura che controlli esplora, la Tritona delle Caverne prende +1/+0 fino alla fine del turno e non può essere bloccata in questo turno.

「地下の海を出来る限り調べ尽くすのだ。恐らく我らの先祖の秘密はこの奥底に眠っている。」
――ティシャーナ

マーフォークの洞窟潜り

あなたがコントロールしているクリーチャー１体が探検を行うたび、ターン終了時まで、マーフォークの洞窟潜りは＋１/＋０の修整を受け、このターン、これはブロックされない。

"Aprenda tudo que puder sobre esse mar subterrâneo. Suspeito que mais segredos de nossos ancestrais jazam à nossa espera em suas profundezas."
— Tishana

Mergulhadora de Cavernas Tritã

Toda vez que uma criatura que você controla explora, Mergulhadora de Cavernas Tritã recebe +1/+0 até o final do turno e não pode ser bloqueada neste turno.

「尽你所能摸透这片地下海的底细。我怀疑其深处还有更多先祖的秘密等待我们去发现。」
～提莎娜

潜窟人鱼

每当一个由你操控的生物勘查时，潜窟人鱼得+1/+0直到回合结束，且本回合不能被阻挡。

Merfolk Cave-Diver

Whenever a creature you control explores, Merfolk Cave-Diver gets +1/+0 until end of turn and can't be blocked this turn.

The Lost Caverns of Ixalan

If a creature leaves the battlefield before an effect instructs it to explore, it still explores. Abilities like Merfolk Cave-Diver's that trigger whenever a creature you control explores will still trigger.

If a resolving spell or ability instructs a specific creature to explore but that creature has left the battlefield, the creature still explores. If you reveal a nonland card this way, you won't put a +1/+1 counter on anything, but you may put the revealed card into your graveyard. Effects that trigger "whenever a creature explores" trigger as appropriate.

If an ability instructs a creature to explore, its controller reveals the top card of their library. If it's a land card, they'll put it into their hand. Otherwise, they'll put a +1/+1 counter on that creature, then choose to either leave that card on top of their library or put it into their graveyard.

If no card is revealed, most likely because that player's library is empty, the exploring creature receives a +1/+1 counter.

In some unusual cases, noncreature permanents may explore. For example, if the creature card returned by Defossilize is somehow not a creature once it's on the battlefield, it can still explore. You'll take all the same actions, and you may end up putting a +1/+1 counter on the permanent. (Note that some effects target a creature, and those effects would still require a legal target to have it explore.)

Once an ability that causes a creature to explore begins to resolve, no player may take any other actions until it's done. Notably, opponents can't try to remove the exploring creature after you reveal a nonland card but before it receives a counter.

Some spells or abilities might cause a creature to explore multiple times in a row. If you reveal a nonland card when a creature explores and leave it on top of your library, then the creature explores again immediately afterwards, you'll reveal the same card again.