Never pull outside of Sugofest, always save your gems. Whatever character you're trying to get outside of it will never be worth it because you could pull a legend. You'll get a ton of gems doing story mode so save those gem and increase box space whenever you need. Eventually you'll open the extra islands which has fortnights. In those fortnights, they drop exclusive characters that are really good (sometimes, other times they're crappy). Once you're strong enough to easily clear fortnights, you can move onto raids which gives you amazing units. You'll want to get Mihawk ASAP since he's f2p friendly and there's tons of slashers given freely.
The only problem with Lucci is that there's not a lot of Powerhouse characters at the start of the game. Once you've gotten more Powerhouse units/sockets, Lucci starts to shine. Atm I can't use my Lucci since I don't have the right sockets for him, but my team I have in store for him should give me level 5 heals, level 3 matching orbs, level 2 CD reduction, level 3 damage reduction, and level 3 bind/despair. This team will be the team I will use heavily once all is done.
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