While the effect of <<11672>> is applying, if control of <<4041>> changes with <<5162>>, will it be unaffected by either player's effects?
Answer: The effect of <<11672>> which makes <<4041>> unaffected by the opponent's card effects applies not just to copies of <<4041>> that you controlled when <<11672>> resolved. (A <<4041>> that is Summoned later to your side of the field also becomes unaffected by your opponent's card effects.) Similarly, if <<4041>> changes control to your opponent once this effect has started applying, the effect will no longer apply to it as it is now on your opponent's side of the field.
Cards related to this ruling
Spell
NormalEach player chooses 1 monster they control and switches control of those monsters with each other. Those monsters cannot change their battle positions for the rest of this turn.
Trap
ContinuousEvery "Dark Magician" in your Monster Zone is unaffected by your opponent's card effects. If this face-up card leaves the field: Destroy all monsters you control. You can only use the following effect of "Eternal Soul" once per turn. You can activate 1 of these effects; ● Special Summon 1 "Dark Magician" from your hand or GY. ● Add 1 "Dark Magic Attack" or "Thousand Knives" from your Deck to your hand.
DARK
7ATK:
2500
DEF:
2100
''The ultimate wizard in terms of attack and defense.''