Keyleth of The Ashari

Protection from red, blue, green and white.
You may play an additional land each turn.
During your main phase, when you play your
first land, you may cast target instant or sorcery
card from your hand without paying its mana
cost. If you play more than one land on your
turn, Keyleth becomes an elemental in addition
to her other types, her power and toughness
equal the amount of lands you control until end
of turn.