Fire trap and explosive trap throw additional trap when used by mine

Can someone explain to me how this works exactly?

Can't find a normal answer anywhere

Fire Trap and Explosive Trap linked with Blastchain Mine Support or High-Impact Mine Support will place a mine that will throw the trap on detonation. Without other souces of additional throwed traps, this mine will throw 1 trap. With this Crucible mod the mine will throw 2 traps. If you link Multiple Traps Support on top, the mine will throw 4 traps. And w/o this Crucible mod it will throw 3 traps.

For the record, a spell can be supported by Blastchain/high-impact mine, Trap AND spell totem.
The result will be a Mine that, when Detonated, creates a trap that, when triggered, will summon a totem.

Yes, there are those kind of shenanigans here

Ah okay now I get it. Thanks guys.

That means that this crucible node is useless on sceptre unfortunately.