Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
This is my first build, based on cassiopeia a little more offensive.
I played a few matches with her and I adapted to this style of game.I belive well that it helps the team with his ultimate, and is great in team fights.
I chose to help ignite the kill with poisons and flash for mobility to escape.
How is a new champion, this build may be subject to change.
Thanks for the space and tips are always welcome.
PS: sorry for my English.