Seath, the Scaleless

Flying, Prowess

{c}: Seath, the Scaleless becomes a color of your choice until the end of turn.
{c}{c}, Sacrifice another creature; Seath, the Scaleless gains protection from a color of your choice until the end of turn.
{3}{c},{t}; Seath, and all permanents attached to him phase out until the beginning of the next end step.