Anafenza, Kin-Tree Spirit

Whenever another nontoken creature enters the battlefield under your control, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

Secure the Wastes

Put X 1/1 white Warrior creature tokens onto the battlefield.

Gideon, Ally of Zendikar

Prairie Stream

Reflector Mage

Always Watching

Bygone Bishop

Declaration in Stone

Rattlechains

Spectral Shepherd

Topplegeist

Evolving Wilds

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Plains

({T}: Add {W}.)

Island

({T}: Add {U}.)