Forum:Steelswarm and Verz

So, I was looking into some of the new Verz cards and I has a question. Verz Castor says "Only once, you can Normal Summon 1 "Verz" or "Steelswarm" monster in addition to your Normal Summon or Set." Right, understood. Now say I use his effect to tribute him for Steelswarm Mantis, and then use Mantis's effect to revive Castor. Would Castor's effect be reset since he left the field? Or is it a one shot deal?