Namielle

Flying
Whenever Namielle deals combat damage to a creature, put a "Water" marker on it.
{u}, {t} : Put a "Water" marker on target creature.
{w}, {t} : Namielle deals 3 damages to target
creature. If it has a "Water" marker on it, remove
it. It is dealt 6 damages instead.
Namielle has -2/-2 as long as you don't pay {u} during your End Phase.