If I use "Untamed Punch" with an undamaged Pangoro, does it still get the Confusion effect?
No, damage counters on your attacking Pangoro are required for both the Confusion and the extra damage.
Untamed Punch





x2
-20
Untamed PunchIf this Pokémon has any damage counters on it, this attack does 50 more damage, and both Active Pokémon are now Confused.


Double StompFlip 2 coins. This attack does 40 more damage for each heads.
If I use "Untamed Punch" with an undamaged Pangoro, does it still get the Confusion effect?
No, damage counters on your attacking Pangoro are required for both the Confusion and the extra damage.