Transferral Potion

[Mathyoo]

Hi,
We played a lot of Munchkin in the past week and encountered a lot of cases where we could not agree on what is legal.

After consulting FAQ and searching online for answers, these questions persist:

5) Transferal potion
I searched for answer to my questions long enough to know this question will ruin someone's day and I am sorry. I have found vague answers only so any and all extra explanation you can provide here will be great.

Player A and player B fight multiple monsters. Several one shot potions were used to buff both sides.
Player A transfers combat to player C.
What happens?
Do all modifiers remain in play? Those buffing monsters and those buffing Munchkin side? What about things like Clerical skill for +3 bonus - does that stay when Cleric leaves combat? Similar with backstab - does the negative modifier stay in play after player that has been backstabbed leaves combat?

We played it this way, as it was argued if monsters are buffed, why wouldn't Munchkins be?

And if combat starts fresh - are used potions wasted and discarded, or are they returned to owners as if previous combat has never started?

Lastly what about the magic lamp? I have seen answers from mods on this forums saying you can not use it, as it is not your turn and that you can use it, as it *is* your "turn to fight the monster". I believe here magic lamp can not be used and wording was probably changed as I was reading some really old questions, but please clarify regardless.

I apologise for bombarding you with questions, alas at least it shows we gave the game a good run! Thank you for your patience, time and help in advance and I wish you all best in 2018!