Tide's Embrace

Enchant creature.
You control enchanted creature. Replace all coloured mana symbols in the mana cost of enchanted creature with {u}. (For example, if enchanted creature's cost was {2}{r}{g}, it becomes {2}{u}{u}.)
As the war raged on, many warriors found themselves wandering into Ma'ateriel's domain, seeking to clean the blood from their armour and their minds.