Boromir, Warden of the Tower

Vigilance
Whenever an opponent casts a spell, if no
mana was spent to cast it, counter that spell.
Sacrifice Boromir, Warden of the Tower:
Creatures you control gain indestructible until
end of turn. The Ring tempts you.
—
"Farewell, Aragorn! Go to Minas Tirith and save
my people!"