Zepher, Knight of Dusk

Ward; {3} or sacrifice one creature

All Wraiths you control have +2/+2 while all Wraiths your opponents control have -2/-2

{w}{w}; Zepher, Knight of Dusk has protection from Black until end of turn
{b}{b}; Zepher, Knight of Dusk has protection from White until end of turn
{x}; put X +1/+1 on Zepher, Knight of Dusk