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.
Health is what you need, you can go Quint of movement speed instead of health cause of the mobility need. These runes provide a good amount of health, armor runes and so provide very low amount and that is why I chose scaling health. It is about 500 health more with these runes and 30 magic resist at level 18.