Aysen Highway

White creatures have plainswalk. (They can't be blocked as long as defending player controls a Plains.)

Plains

Graceful Antelope

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)
Whenever this creature deals combat damage to a player, you may have target land become a Plains until this creature leaves the battlefield.

Stiltzkin, Moogle Merchant

Lifelink
{2}, {T}: Target opponent gains control of another target permanent you control. If they do, you draw a card.