It's strange how the champion has the ability to blow huuge amounts of cum but it does nothing, not even a minor impact.
There are several cum parsers for volume, and they're used in most scenes where dickChamp cums. While writers can and do account for whatever volume of seed they wish, many of us use the SNVH wrapper: four options for small cummies, medium-sized cummies, very large cummies, and hypercummies. The hypercummies version is for any cum volume larger than 10000mL, so pumping out 20L of cum is not going to have a textual difference compared to 10L of cum, etc.
If you don't notice these variations, it might be because they're meant to flow seamlessly within the text. There's no highlight saying "this is the variant you get because you have between 1000 and 10000 mL of jizz". But that's what's happening, under the hood.
Not every dick scene has cumVol variants, but since it's one of the more popular things for male players to TF, many of them do.
Even with the existing parsers, extremely hypercummies are unlikely to be accounted for. If your Champ can pump out an actual lake of seed, you are not going to drown Hawkethorne with every sex scene. No one wants to write that.