As jarvaniv, If they invade you early, just back off. This is especially true if they are ahead, as you will not win early fights with them

Be proactive with your Ultimate, as they will look to use theirs whenever it is up. Force ganks with your R!

As they will be ganking often in the early game, you need to make sure that you are also looking to gank as often as you can and abuse your E.

Focus on securing those objectives. You must take Rift Heralds and Drakes whenever you can!
 As jarvaniv, If they invade you early, right back. This is especially true if they are early, because you won't win early fights with them Be proactive with your Ultimate, because they will seek to use theirs every time it's up. Force ganks with your R! As they will often gaunt in early play, you need to make sure that you also look at gank as often as you can and abuse your E. Focus on securing these goals. You need to take Rift Heralds and Drakes when you can!