Belos, Lord of Twisted Souls

Flash, Haste, Vigilance

When Belos, Lord of Twisted Souls enters create three 2/2 undead creature tokens with Vigilance.

When Belos, Lord of Twisted Souls would be put into the graveyard, attach it to target undead or zombie. It gains +5/+4, vigilance, and "When this creature dies create a 1/6 token version of
Belos, Lord of Twisted Souls with all the same abilities."