Achilles, Myrmidon Hero

Exalted, Menace, Frenzy 2

When Achilles, Myrmidon Hero takes exactly
one damage from an instant or sorcery spell,
or when a -1/-1 counter is put on it,
it immediately dies.

Achilles, Myrmidon Hero transforms
as it enters a graveyard.

Parnter with Patroclus