Yu-Gi-Oh! Ruling question.?

I was just wandering about necro gardna's effect.

You remove him from play from your grave as a cost and you can negate an attack. Even if your opponent plays you D.D. Crow you still get to negate an attack for this turn.

But what if your opponent chains you Transmigration Prophesy?

Since it's a chain necro guardna returns to the deck and can not be removed since he is no longer in your grave. Yet removal is the cost for that card, so i don't know what should be done.

Anyone knows the ruling for this combo?

We would like to remind as you can see yourselves from my profile that i have NEVER asked a question without voting for a best reply.

I always hated brats that waste people's time and don't even say a thank you so rest assured this is not my case.