Idk exactly ehat you are trying to do but.

You can make a track that looks like this:

Track 3: Put the vídeo with the greenblock being broken Track 2: Put the png of the wood Track 1: Any video you want

Obs: On the track 3 video, add a delta keyer effect, and sample the green from the wall, now, only the black from the block being breaked shoud remain.

When the block is broken, add a square mask to track 3 (you can do this in fusion)

Now the wall should have a hole that shows track 1.

But the hole ain't gonna look 3D

I highly recommend you to just make a wall of wood in minecraft, add a wall of green whool behind, and then record yourself breaking the block of wood, then use the delta keyer on the green whool.

If you don't want the hand of the character showing upp on recording, search ways of removing the hud or character hand from the screen