Weiss Schnee, Unburdened

{2}: Weiss Schnee, Unburdened gains one of the following abilities until end of turn:
• Double Strike (Choose only if {w} was spent.)
• {t}: Target creature can't block this turn. (Choose
only if {u} was spent.)
• Flying (Choose only if {b} was spent.)
{bull} {t}: Weiss Schnee, Unburdened deals 3 damage
to any target. (Choose only if {r} was spent.)
{bull} Vigilance (Choose only if {g} was spent.)