Usually triggering this powerful ability requires another creature to enter the battlefield, but with Scampire, the creature will trigger its own ability and be able to attack immediately as a 13/13 with haste
Zephyr Charge isn't the strongest card in the world, but combine it with a few Plummet effects to upgrade your situational removal into Doom Blades
But I really want to own The Power 9! you say
Also, due to the 3rd effect of [Herald of the Arc Light] and the 2nd effect of [Chaofeng, Phantom of the Yang Zing], you can search for follow-up cards like [Illusion of Chaos], [Diviner of the Herald], or various hand traps when they are sent to the Graveyard, so even if this board is broken, you can perform additional plays on the return turn
The neat thing about Fortress besides being a level 7 monster with a huge body that can special summon itselfis that Fortress can special summon itself by discarding itself and another card