You were saying?

In case you were worried that getting 10+ kills prior to the 20 minute mark was a problem. Obviously, you're not going to get 10+ kills before 20 minutes have elapsed every single game, but you will get a lot of kills nonetheless (at least 5 or 6 usually). Each additional shatterglass makes it easier to get kills (and thus gold) because it helps you overcome any tanky builds that might be able to withstand Joule's ultimate. Therefore, accumulating gold becomes pretty easy late game....

If facing Catherine, you always have the option of keeping your distance in the lane and/or activating travel boots to escape her stun/silence abilities. In the event that Joule is in the jungle, Joule would also be able to simply run away after Catherine hits her with a stun/silence (I'm not convinced Catherine would have enough damage dealing ability with her basic attacks to overcome Joule's Heroic Peak before Joule is able to use Travel Boots post-stun/silence). A Catherine counter...

Travel Boots + Frostburn + Broken Myth + 2x Shatterglass in the 20th minute just like my guide says. If we hadn't won directly after this screenshot, I probably would have bought a 3rd Shatterglass by the 23rd-25th minute. Nowhere near 30 minutes. Why wouldn't I just wait to fire my ultimate directly after Catherine's Stormguard begins its cooldown? Furthermore, if I find Catherine irksome, I can just kill the other 2 enemy heros. Catherine doesn't magically debilitate Joule.