I'm frustrated with LBF. I saved 15 LBF cards at one point and was able to get over 1,000 points on Monday. Ended the week battling the same 2 people Tu-Sa. Even if I won, I only received 10 points (until Friday). Finished the week with 1492 pts, so missed the achievement goal.
I'll disagree with Argamon, as from what I've seen LBF cards are probably the rarest item in Castle Clash. Never see them offered in Bazaar, and haven't seen them in warehouse buys, I've only seen them available in rare rewards in events (Bingo/Plants). Need some help here IGG!
I think you are on target, Yoda, with your strategy. I try to get 150 points a day to get above the 1000 pt mark, so if I am over 800 by Friday I feel good. My experience is that if you aren't about 300 before W or above 600 by Th, then you start getting those out of sync match-ups. I've been at 800+ and my top team to face was 550 after 3 refreshes.
What I do- Strongest team, weakest, second strongest. My SK team is usually the weakest, but I don't have revite on SK. I like SE, DoK, Aries, GH and Sas with the current META. I throw a revite Dusa on the front line on occasion which helps 60% of the time.
What teams I find hardest- Combos of the following: SE-revite, Athene-revite, Skele-empower/FG, Mike-FG, all Regen teams, and all empower teams.
Hope this helps!