Vault Hunters, the Tag Team

Vault Hunters, the Tag Team enters the
battlefield with X +1/+1 counters.
Sirens and other Vault-Hunters you control get
+1/+1 and Menace.
Whenever Vault Hunters, the Tag Team attacks, create X where X is this creature's power */*
Vault-Hunter tokens where their power and toughness is equal to the number of creatures
you control.