Arngeir, Voice of Hrothgar

Vigilance
Shout spells you cast cost {1} less to cast.
Whenever you cast a shout spell, If this is the first
time this ability has resolved this turn, Arngeir,
Voice of Hrothgar gains indestructible until end
of turn. If this is the second time this ability has resolved this turn, draw two cards. Otherwise
scry 1.