Sentinel of the Jaws

Vigilance, Dreamcast (You may tap this creature
while casting an instant or sorcery. If you do, it pays
for {1} of that spell's mana cost.)
Whenever you cast a noncreature spell, Sentinel
of the Jaws gets +1/+2 until end of turn.
While most of the Tribe of Arcana rely on magic for
most of their battles, the Sentinels have trained in
many weapons to ensure the protection of Nebulis.