Triumph's One Perfect Moment
Ah Triumph. One of the most tragic comic characters their perhaps ever was. But let's forget about that and remember his one high point from Justice League America #92 (his intro issue)
And since from what I've seen SD knows next to nothing about Triumph...
He was a hero who existed canonically before the Justice League formed in fact bringing together the members who formed the original Justice League. (Black Canary, Flash, Aquaman, Martian Manhunter and Green Lantern). He brought them together to stop an alien attack on Earth, the aliens attacking the planets core which would've destroyed the planet had he not brought the League together. Throughout the issue he constantly was annoyed since the League didn't follow his orders to the letter even though it would've been the easiest and most efficient thing to do. Basically he was always right but the League din't really listen to him. He then had to save his plan by going into the machine that was affecting the planet's core and super charged him and he then targeted the mining machine attacking the core. But the massive energy ripped open a hole in time and made the world and everyone forget about him and the aliens.