Arboreal Grazer

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

Sol Ring

Omnath, Locus of Mana

You don't lose unspent green mana as steps and phases end.
Omnath gets +1/+1 for each unspent green mana you have.

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Prevent all combat damage that would be dealt this turn.

Arbor Elf

Elvish Pioneer

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

Explore

You may play an additional land this turn.
Draw a card.

Llanowar Elves

Harmonize

Cultivate

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Farseek

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.