What about a multifaceted large skill tree with out endless skill points so that each guardian could differ slightly. Skill points and the current system don't seem to matter too much its just something you have to gain on your way to lvl20. Skill points could become a sort after reward.
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Edited by TommyG: 12/14/2017 10:13:44 AMFF X... It also wouldn't fit in with the balance bungie wants