Eye of Cthulhu, Seer of All

Flying, first strike, boss 2 (When this creature would die,
it doesn't die, instead it's base health is halved, rounded up, it's attack increased by 2 and it enters phase 2.)
When Eye of Cthulhu enters, summon a 1/1 eye servant creature token with flying.
{1}{r},{t}: Summon a 1/1 eye servant creature token with flying.

When Eye of Cthulhu, Seer of All enters phase 2 and if there is a permanent with the creature type Terrarian on the battlefield, exile Eye of Cthulhu, Seer of All and summon a