Because he is part of the mage update.
OK. Pyroclasm. Imagine Nami Q bounce effects.
Imagine it leaves an AOE fire puddle. Or Pillar leaves an aoe fire puddle that Pyroclasm gets a free bounce from.
I like the thought of using Conflagration to explode Sear mid flight.
Brand should have reasons other than "let passive tick more" (aside from waiting for the best moment) for wanting to use his abilities later.
Google Kio Kusanagi and watch his fiery crap.
This is the place to talk about any and all things in the gamer cultural space (video games, anime, etc). Mostly, that means stay away from stuff like religion, sex, politics, and social issues, though some exceptions may be appropriate (e.g., internet legislation).
Remember to follow the [Universal Rules](http://boards.oce.leagueoflegends.com/en/c/announcements/BjArMH2B-boards-universal-rules).