Go do your homework:

https://hellhades.com/raid/tier-list/ 

https://ayumilove.net/raid-shadow-legends-guide/ 

I look on those sites alot. I wasn't asking such a general question. My point is the single champ that changed your experience in a particular game mode. Like for instance Maneater in Clan Boss.

I'll just touch on a few champs/areas:

Gnut: bosses, hard FK + Spider (though less of a big deal). Still, for what he does he could very well be the best fusion ever. He's capable of being in speed run Shogun/Sand Devil on the right accounts too.

Duchess: arena, dungons, doom tower, iron twins, bosses in general. Though she's been power crept in Arena, I still think she's one of the best champs an account can start with.

Rotos: arena, not much else to say. I use him in Shogun as well

Graazur: completely changed my account in Hydra, though Trunda team is currently carrying my account there. Great for me in Shogun, too.

Cardiel: used to rely on him a lot in Arena but still do quite a bit in Hydra and Shogun. 

Wukong: heavily, heavily rely on him in arena. tough to imagine we'll see a better free champion than him. 

Thanks. I totally love the Monkey King. The mythology (historical), the aesthetics, and the mechanics:)

I was lucky enough to pull a dupe Monkey.

One is built all speed and acc for cc, but hits like a wet noodle.

The other is built for damage, and slams like a speeding mack truck.

Now I wish I had gone for the skin to distinguish them when I use them together