Angels: They're Just Like Us but Cooler and with Wings

Forged In Stone

Karoo

This land enters tapped.
When this land enters, sacrifice it unless you return an untapped Plains you control to its owner's hand.
{T}: Add {C}{W}.

"Be like the meerkat, my daughters: ever vigilant, true to your own, and wary of strangers."
—Nabil Alamat, Suq'Ata merchant

Karoo Meerkat

Karoo enters the battlefield tapped.\r
When Karoo enters the battlefield, sacrifice it unless you return an untapped Plains you control to its owner's hand.\r
{T}: Add {1}{W} to your mana pool.

Karoo comes into play tapped.
When Karoo comes into play, return an untapped plains you control to owner's hand or bury Karoo.
ocT: Add {W} and one colorless mana to your mana pool.