User blog comment:号哭/A Blog Part 1.0 - Questions/@comment-37372149-20190628205458

Do not use gems to refill your stamina. When you're an endgame player who competes in community events or TM rankings or something similar, you can use gems for refills. But in early and midgame you should not do that, especially for Story islands. You should focus on Extra island, as there are more useful units to obtain that will help you clear content (the actual colosseum rotation is good for example. It is also the last rotation of this particular Colosseum wave, so get those units as long as you can). Story islands aren't really that important, but they can help you get the last few gems you may need to make one more multipull in the tavern during a sugo fest.

Speaking of gems: if you are f2p save as many as you can until there comes a good sugo fest (usually 2x legend rate). the next one should be French Anniversary in around a month.

CC can be obtained in various ways. The easiest should be in the extra island quest that is out now called "restaurant le crab" where you get +3 CC. Else there are lots of ways to get it as many quests have them as a drop (the "sugo quest" that costs 0 stamina before a sugo fest, colosseums, treasure maps,...). As to how to apply them look at Gameplay:Cotton Candy as there is explained how you are the most beli efficient (important in early to midgame. afterwards you swim in belis). The permanent clash quests on extra islands has some good characters for every class. The best f2p characters are usually found on extra island as story characters won't bring you very far as most of them aren't really that good anymore.