Mine has been Yugioh. Seeing them summon monsters with their cards was very interesting. Yugi fought for his friends and to free his great father from Pegasus. Pegasus was very scary at the time and I was unsure if Yugi will succeed in the tournament. Like how can you overcome someone who can see your plan ahead of time? Yugi was also very lucky cause his strategy to beat Pegasus could have backfired. He was literally playing bis cards without looking at them. there was a high chance for the card he pulled out to be a monster instead of magic or magic in place of a trick something that will mess up his game. Still, in the end, he was susessful.
After Yugioh, I got very interested by anime and started following anime channels to see if I will find a story comparable. This interest I have in mangas, got me into cartoons. I watched tom ad Jerry and the other variant. It was really fun.
Years after that, I discovered a lot of other manga that got me even more hyped, Naruto, One-piece, and Bleach I watched all of them. And today I'm still following one piece for fun, the adventure never ends and it makes me laugh a lot.
In the past I only match the anime but now I found it even more great to read the manga version. There are still many more mangas to watch or read.
Still have not watched Saint Saya, seems like there is a lot of dead in the show which pushed me away but I will try it out we never know. I can't wait for new and more epic anime to come out even if I doubt there will be in the future.