Chaosmancer
Legend
A regular fighter in D&D can do impossible things - at 10th level a fighter can fight a tiger naked with his bare hands and no martial arts training and win every single time. If he is a medium size race he can grapple said tiger and prevent him from moving anywhere well over half of the time with no Athletics training, with Athletics training that fighter could do that half the time even with an 8 strength. The current 5E D&D fighter is Batman!
In what interpretation does the Fighter not have martial arts training? They literally are trained with every weapon in the world, including their fists.
He can get bit by a king cobra and require no medical attention at all and usually not even be affected by the poison.
This is true of most characters. Period. Even the measly 10 con wizard ignores venomous snake bite 50% of the time. With half damage that means half of all wizards survive a bite from a cobra with no medical attention. Even commoners do this.
In DnD, this isn't THAT impressive.
If you took the a world champion MMA fighter who is among the best martial artists in the world IRL and told him to beat a tiger to death with his bare hands he would end up dead. If you told him to grapple a tiger and prevent it from moving he would fail and again likely end up dead. If he got bit by a Cobra and did not get attention he would die the majority of the time
And the last time a heckler at a comedy show got roasted, their skin peeled from their face and they fell over dead... oh wait. Comedians can't do that.
So why are we basing IRL stuff on this?
You know who you could throw into a pit with a tiger and them not die? Any hollywood action star. John Wick would walk out of that pit. So would Jack Reacher. Any of the people from the Expendables.
And while tigers are the top of the food chain here... well, a wyvern is basically a flying, venomous tiger that can hunt in pairs or packs. And wyverns aren't at the top food chain either.