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.
Trista can deal very high amounts of damage in a very short period of time. Her abilities make this possible. This build exaggerates these abilities and she is able to get kills very quickly and then get out again.
High attack speed with good damage
very high critical strike. Almost a 100% chance of getting a critical
Fast movement speed
Low heath and mana with fairly low armor and magic resist