Rumpelholz-Wasserfälle

Die Rumpelholz-Wasserfälle kommen getappt ins Spiel.
{T}: Erzeuge {G} oder {U}.
{2}{G}{U}: Die Rumpelholz-Wasserfälle werden bis zum Ende des Zuges zu einer 3/3 grünen und blauen Elementarwesen-Kreatur mit Fluchsicherheit. Sie sind immer noch ein Land.

Chutes mugissantes

Les Chutes mugissantes arrivent sur le champ de bataille engagées.
{T} : Ajoutez {G} ou {U}.
{2}{G}{U} : Les Chutes mugissantes deviennent une créature 3/3 verte et bleue Élémental avec la défense talismanique jusqu'à la fin du tour. C'est toujours un terrain.

伐採地の滝

伐採地の滝はタップ状態で戦場に出る。
{T}：{G}か{U}を加える。
{2}{G}{U}：ターン終了時まで、伐採地の滝は呪禁を持つ緑青の３/３のエレメンタル・クリーチャーになる。これは土地でもある。

Lumbering Falls

This land enters tapped.
{T}: Add {G} or {U}.
{2}{G}{U}: This land becomes a 3/3 green and blue Elemental creature with hexproof until end of turn. It's still a land.

Pioneer Masters

Modern Horizons 3 Commander

Lumbering Falls enters the battlefield tapped.
{T}: Add {G} or {U}.
{2}{G}{U}: Lumbering Falls becomes a 3/3 green and blue Elemental creature with hexproof until end of turn. It's still a land.

Forgotten Realms Commander

Commander 2021

A land that becomes a creature may be affected by "summoning sickness." You can't attack with it or use any of its {T} abilities (including its mana abilities) unless it began your most recent turn on the battlefield under your control. Note that summoning sickness cares about when that permanent came under your control, not when it became a creature nor when it entered the battlefield.

An ability that turns a land into a creature also sets that creature's power and toughness. If the land was already a creature (for example, if it was the target of a spell with awaken), this will overwrite the previous effect that set its power and toughness. Effects that modify its power or toughness will continue to apply no matter when they started to take effect. The same is true for counters that change its power or toughness (such as +1/+1 counters) and effects that switch its power and toughness. For example, if Lumbering Falls has been made a 0/0 creature with three +1/+1 counters on it, activating its last ability will turn it into a 6/6 creature that's still a land.

This land is colorless until the last ability gives it colors.

When a land becomes a creature, that doesn't count as having a creature enter the battlefield. The permanent was already on the battlefield; it only changed its types. Abilities that trigger whenever a creature enters the battlefield won't trigger.