Storm-Slayer Centaur

Whenever a spell or ability cast by an opponent targets you or a permanent you control, it instead targets Storm-Slayer Centaur. Damage dealt
by those spells or abilities is reduced to zero.
Storm Slayer Centaur cannot be exiled.
When Storm-Slayer Centaur is targeted by a spell
or ability, it gains a -1/-1 counter.