Commander creatures you own have "This creature enters with an additional +1/+1 counter on it" and "Other creatures you control enter with an additional +1/+1 counter on them."

Reach When this creature enters, you may put a land card from your hand onto the battlefield tapped.

Defender {T}: Add X mana in any combination of colors, where X is the number of creatures you control with defender.

Defender, reach Channel — {4}{G}, Discard this card: Destroy target creature with flying.

Defender, first strike

Defender When this creature enters, you may search your library for a basic land card or a Gate card, reveal it, put it into your hand, then shuffle.

This creature crews Vehicles using its toughness rather than its power.

Whenever another creature you control attacks, it gets +0/+1 until end of turn.

Landfall — Whenever a land you control enters, you gain 1 life.

{T}: Add {G}.

Defender {T}: Add {G} for each creature you control with defender.

Defender (This creature can't attack.) {2}, {T}, Sacrifice a creature with defender: Draw a card.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {G} or {W}.