"It has strange properties, a Metebelis crystal. It can affect the mind."
—The Third Doctor

「メテベリスのクリスタルは不思議な特徴があってね。心に作用するんだ。」
——３代目ドクター

蔦明の交錯

蔦明の交錯が戦場に出るに際し、あなたの手札にあり森や島であるカード１枚を公開してもよい。そうしないなら、蔦明の交錯はタップ状態で戦場に出る。
{T}：{G}か{U}を加える。

Vineglimmer Snarl

As Vineglimmer Snarl enters, you may reveal a Forest or Island card from your hand. If you don't, Vineglimmer Snarl enters tapped.
{T}: Add {G} or {U}.

Duskmourn: House of Horror Commander

Modern Horizons 3 Commander

As Vineglimmer Snarl enters the battlefield, you may reveal a Forest or Island card from your hand. If you don't, Vineglimmer Snarl enters the battlefield tapped.
{T}: Add {G} or {U}.

The Lost Caverns of Ixalan Commander

Doctor Who

 If a land card with an appropriate subtype is entering the battlefield from your hand at the same time as one of these lands, you may reveal the other land to have the "Snarl" enter untapped.

 If an effect instructs you to put one of these lands onto the battlefield tapped, it will still enter the battlefield tapped even if you reveal a land card from your hand.

 The "Snarl" itself doesn't have any land subtypes. You can't reveal one to satisfy the ability of another.

 You may reveal any land card with either or both of the appropriate subtypes. It doesn't have to be a basic land card.