Basically - Towers are Tasty. Vi has very high splitpushing potential due to a few knicks in her kit.

Her passive & W/E allow for very high sustain and wave clear.

Q allows her to escape enemies very easily. If your taking a enemy turret and they approach you, you can Q into the jungle to escape generally unscathed.

Her R should generally be used for when you are confident to kill a low HP enemy. This is a useful ability to seperate a single annoying enemy in teamfights.

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While under a turret, Demolish will do much of the damage, but utilizing Vi's E allows her to do an additional load of damage. Often with the first legendary, a Demolish charge & a few E's, you will be able to take a tower.

You generally will not win as a combatant top laner, but split pushing is a very valid win condition in most games, and can allow your team to farm and get kills more favourably. If you play it right you generally will be the unsung hero of the team. In teamfights your goal is simply to exist, do not play super aggressive and focus on whittling enemies down alongside your team.

If your playing this in a higher ELO, make sure that you have sufficient vision & knowledge about the enemy position in order to make this strategy work.

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I apologize for this being a relatively short guide. It's my first guide on the website so I am not super sure if it is formatted correctly, but nevertheless thanks for letting me share my favorite Vi build. <3