Arjuna is an archer.
Indra threw a mountain top at him. Indra's attack failed because Arjuna destroyed the mountain with a hail of arrows.
Arjuna made a bridge composed entirely of arrows in a few seconds strong enough to support a 100 foot demigod.
Arjuna tried to prevent the death of a kid by shooting so many magic arrows around him so that the Grim Reaper couldnt touch him. He failed, so he went to the underworld with Krishna (a god) and rescued the kid.
Arjuna is invulnerable inside water.
Olympic level speed+reflexes.
Arjun doesnt get divine weapons or any other weapons besides his standard chariot, bow and arrows. (No amp from any god)