Thriving Heath

Thriving Heath enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Keleth, Sunmane Familiar

Whenever a commander you control attacks, put a +1/+1 counter on it.
Partner (You can have two commanders if both have partner.)

Marble Diamond enters tapped.
{T}: Add {W}.

Sacrifice Benevolent Bodyguard: Target creature you control gains protection from the color of your choice until end of turn.