You can see effective chaining of stuns, summoner spells and movement between me (Leona) and my friend (Vayne).
As you can see I'm not buying a faerie charm (see alternative builds in my guide) because I'm quite used to Leona and hit most of my Zenith Blades. I ward early because the enemy jungler is Alistair who is a strong ganker throughout the game. Also i make sure to play very careful against the enemy Blitzcrank as I don't want to get pulled into Vaynes range without the ability to zap towards her and disable her with my stun. From Level 2 onwards I can play more agressively.
When Blitz decides to put his ward we use the situation and engage on him. He gets away quite luckily with Flash and grabs me, but I'm not in tower range. As the enemy Vayne tries to get me and Blitz wants to help, Ytrosh can kill him and save me with heal. I run into the bush to prevent at least one autohit from Vayne, then stun her and afterwards exhaust. I flash away to get out of her range and she dies from all the damage she takes from our Vayne.
Only seconds later their Alistar shows up. I would have had no chance to reach the tower and survive so instead I went into the lower bush, getting out his Flash, too. With a bit of luck I get my level 3 and can activate Eclipse, stun him and get away while Ytrosh kills him. Like a bozz I didn't even have to use a heal potion (ok, to be honest I just forgot due to the awesome moves we pulled off :) ).
The game was won due to enemy surrender after 21 Minutes.