Train your Pepita to level 55 and it will evolve into tyranitar
To easily get one, click on the tab > Shop,Center, And more > Pokemon Locator > then click on Larvitar. Go to a room with Larvitar in it, then go to room information to make sure the levels are 41- 50. Walk around 'till you find a level 50 Larvitar. Use an ultra ball to catch it. To level it up, either use the rare candy cheat, or just train it yourself. Hope this helps!! If you want to add my my user is: Internutty
Use rare candy and get it there fast and then evolve it
Use rare candy, level up, train or you can trade.
Here's a way to get it fast. Go to rooms and go to room name. Search larvitar and check each room. There should be lvl 41-lvl 50 larvitars. Make sure you catch one lvl 50. Buy rare candies or just train to lvl up and evolve to tryannitar.
This is what I do I get one rare candy the I do to the pokemon I want to level up then I click on the pokemon then click on attach item then click on the rare candy then again and again as fast as you can before it start loading so you can level it up higher but this works better on slower computer but sometimes it freezes on slow computers