Quote Originally Posted by GregTD View Post
2: The homebrew has been used before. An effect that could be caused by the homebrew has been used this time. Going from that to "the homebrew was used this time" doesn't strike me as a huge leap of logic.
The splice is the homebrew effect. Not the replenishment of spells.

There's no evidence that a splice was used here. That means no replenishment of spells.