Pastel Skeleton

If you paid at least one {r} to cast Pastel Skeleton, it gains Haste and First Strike.
If you paid at least one {w} to cast Pastel Skeleton, it gains Lifelink.
If you paid at least one {g} to cast Pastel Skeleton, it gains +1/+1 and Trample.
If you pay at least one {u} to cast Pastel Skeleton, it gains Flash.