Scary Wild boar

Wild boars are prey to tigers and lions, but larger boars can pose a threat to ligers.
In the wild, where wild boars can outsmart lone wolves and easily kill unwary coyotes, wolves hunt adult males at great risk, or at least at the expense of individual companion awareness.
Hunters have "one pig, two bears and three tigers", is to illustrate the ferocity of wild boar.
The skin of a wild boar is so hard that some old muskets cannot Pierce it.
At least I can tell you that a wild boar can beat all the canids alone, and it doesn't take much effort to do so.
As for being worse than a liger, there are exaggerations. There have been cases of wild boars mauling tigers who prey on them, but mostly they are hunted by big cats.