Renting for Diamond in 1 Day

So, here's my latest update on my rentals.
NOTE: rentals is just one of the MANY factors in winning games in Splinterlands. I am not going to give false hopes to you by saying that when you copy my rented cards it will guarantee you a win - Knowledge and strategy is a MUST if you really want to win.
In building decks, your mindset should not be "I need to build an extremely OP team". Instead, COVER as many RULES as you can. For what good is an OP team if it gets banned 60% of the time? Again, cover as many rules as you can.
My winrate for today's rentals is probably around 55%-65%. Yes, you can't win all games. That's just how it is, especially if you're just renting.
Before I rent, I make sure I have high enough ECR so I can earn back my rentals asap.
Here's how I started my rentals:
Budget: 3000 DEC
Duration: 1 Day
in the first few hours, from 95% ECR, I grind back my 3000 DEC.
Then tomorrow (8-9 hours before rental expiry), I grind again and the remaining time will all be profit.
And I get 24 loot chests from the 2 stacked quest i finished while grinding in Diamond 2.
Total Profit: 1700 DEC in 1 day. (With some few cards and potions from the 24 loot chests I got from daily quests.)
Why am I sharing this?
When I was just starting, I also struggled into the game. Was frustrated 'cause I couldn't win any games. But one moderator here from the group was generous enough to share his/her strategies and decks. So, basically, I am just giving back the help I've received from the people who also helped me when I was just starting.