Azokol, Lifes Exsanguination

When Azokol enters the battlefield, sacrifice it unless you sacrifice five creatures.
Whenever you cast an instant or sorcery spell, create a colorless 0/1 Eldrazi Scion token. It has "Sacrifice this creature: Add {c} to your mana
pool."
Whenever you cast an instant or sorcery spell, each opponent loses 1 life and you gain that much life.