If you're F2P, you can replace the 3 Fiendish Chains, WLC and E-con with 2 Treacherous Trap Holes, Keeper of the Shrine, Silver's Cry and Cards of Consonance (this costs a lot of gems, but this way you don't have to spend money like you do with 3 Fiendish Chains).
Yep, exactly my thoughts.
Even when there is growth for Duel Links it is still disappointing considering the popularity of the Yu-Gi-Oh name.
The fact that other Gatcha games are worst is no excuse to make it into a bad P2W game. It's like saying a burglar is hitting you but another one is hitting your neighbour twice more, so I'm OK with being stabbed.