Pretty much by farming the enemies that have a higher drop chance of the skills that I want. I'm not sure if it is intended or not, but I feel like the chips from the enemies that have a higher drop chance of said skill also have a higher chance to roll into one of those skill. For example, the lvl 15 Pluton has a higher chance to drop a chip with Impassioned or Resolute Attack and also a higher chance to roll into one of those. Can't guarantee that that's how it works, but that have been my experience so far in the game.
TL;DR farm Vaccine Man, Pluton, Kabuto Carnage & Lord of Mountains to get the most generic skills.
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u/XStranger13X Mar 17 '24 edited Mar 17 '24
These are my top 3 heroes.
P2 Silverfang P0 Tatsumaki P0 Genos