Not sure why you’re talking about hand-buffing from murlocs.
The post is about this minion being buffed by a tavern spell.
If loc-prince is 4/4, it has already been buffed. If it has been buffed, it should have gained an extra +2/+2 from its own effect.
Starting at 2/2, a loc prince cannot become a 4/4 after gaining stats. It will at minimum be a 5/4 or a 4/5. Checking at the current bg collection, it’s impossible for a loc prince’s to be 4/4 exclusively from the rectuit phase without a bug
The only way to have a loc prince with permanent 3 health, 3 attack, or 4/4 would be to buff it exclusively and permanently during combat, where the extra +2/+2 would only be temporary (which is not what happened since they buffed it during recruit phase with echoing roar)