Unterholz-Champion

Falls dem Unterholz-Champion Schaden zugefügt würde, während eine +1/+1-Marke auf ihm liegt, verhindere den Schaden und entferne eine +1/+1-Marke vom Unterholz-Champion.
Landung — Immer wenn ein Land unter deiner Kontrolle ins Spiel kommt, lege eine +1/+1-Marke auf den Unterholz-Champion.

Campeón del sotobosque

Si el Campeón del sotobosque fuera a recibir daño mientras tiene un contador +1/+1 sobre él, prevén ese daño y remueve un contador +1/+1 del Campeón del sotobosque.
Aterrizaje — Siempre que una tierra que controlas entre, pon un contador +1/+1 sobre el Campeón del sotobosque.

Champion du sous-bois

Si des blessures devaient être infligées au Champion du sous-bois pendant qu'il a au moins un marqueur +1/+1 sur lui, prévenez ces blessures et retirez un marqueur +1/+1 au Champion du sous-bois.
Toucheterre — À chaque fois qu'un terrain que vous contrôlez arrive, mettez un marqueur +1/+1 sur le Champion du sous-bois.

Campione del Sottobosco

Se sta per essere inflitto danno al Campione del Sottobosco mentre ha un segnalino +1/+1, previeni quel danno e rimuovi un segnalino +1/+1 dal Campione del Sottobosco.
Terraferma — Ogniqualvolta una terra che controlli entra, metti un segnalino +1/+1 sul Campione del Sottobosco.

下生えの勇者

＋１/＋１カウンターが置かれている下生えの勇者がダメージを受けるなら、そのダメージを軽減し、下生えの勇者の上から＋１/＋１カウンター１個を取り除く。
上陸 ― あなたがコントロールしている土地１つが戦場に出るたび、下生えの勇者の上に＋１/＋１カウンター１個を置く。

Undergrowth Champion

If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from this creature.
Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature.

Foundations Jumpstart

If damage would be dealt to Undergrowth Champion while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from Undergrowth Champion.
Landfall — Whenever a land you control enters, put a +1/+1 counter on Undergrowth Champion.

Battle for Zendikar Promos

Battle for Zendikar

If damage would be dealt to Undergrowth Champion while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from Undergrowth Champion.
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Undergrowth Champion.

If Undergrowth Champion is dealt damage from multiple sources at the same time (for example, if it's blocked by multiple creatures), its prevention effect will apply once to all that damage. You'll remove only one +1/+1 counter.

If damage that can't be prevented is dealt to Undergrowth Champion while it has a +1/+1 counter on it, you'll still remove a +1/+1 counter on it.

A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.

A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.

Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them   on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).