Birthing pod and Pulmonic sliver problem

[Yzen]

Hi,

I have a question...

There's a Pulmonic Sliver and Birthing Pod under my control, and I want to sacrifice let's say Winged Sliver into Birthing Pod, and find myself something with manacost 3...

What is going to happen to the Winged Sliver? Is it going to get shuffled into the library, or is it going to stay on top of it?

Thanks in advance.

[Shadow_Seraph]

It will either go to the graveyard, or be shuffled in, depending on whether or not you choose to apply the replacement effect to put it on top of your library. Birthing Pod's ability goes on the stack, and then when you pay costs and finish activating the ability, Winged Sliver's effect (from Pulmonic Sliver) will trigger and go on the stack on top of it. It will be on top when Birthing Pod's ability resolves and will eventually cause your library to be shuffled.

[Pox!]

It's not a trigger on Pulmonic - you even state it yourself, that it's a replacement effect

When you sacrifice the sliver and apply the replacement, you put it on top of your library immediately (no stack). Then when the trigger (pod) resolves, you shuffle your library with it.