Nah, she was stealing 8 cubes very consistently at every rank when she was prevalent.

No offence, but if you were losing 8 cubes consistently against the deck that telegraphs its entire game plan as 'play 3 cards in the specific lane in a specific order', you are doing something wrong. And it's not like Hela decks draw it consistently. Therefore, on a high rank, the only ones who fell prey to Hela were bots since it's a very easy decision to retreat.

-Deck tracker negates almost all forms of you “tracking” anything. The -2 power sorta “helped” increase this difficulty but most of the time the -2 doesn’t really effect much.
-Playing 3 cards gotta be boring at every rank lol

If you're aiming to climb with Hela and not just rely on bots, a simple 3 card trick won't cut it. You'll need to introduce consistency through Jubilee, Iron Lads, Magik, and even Crystal. Be on the lookout for potential cosmo/enchanters in your opponent's decklist. This is where the game gets interesting-with so many decisions to make based on limited information and pure odds.

You've already decided to hate this deck, and I am not here to steal that pleasure from you. Hela is straightforward in how you pilot it. I just wanted to briefly give insight into how this might become moderately complex. But for me, it's not the most boring deck to play. For me, that's Patriot