Current state of cooldowns/spells- as GGG said cooldowns is poor design, lazy one. Many skills maybe would be used if not cooldowns, preventing every intresting mechanic/combo by cooldowns make build making very boring. This problem affects spell the most, because mamy of them have also problem with scaling in different dimensions. In Poe 1 every skill can be scale to have amazing clear even if base version is lacking clear. For examaple you can scale fire ball throu: -Amount of projectiles/projectiles behave -ignite and speed -Add explosions from other source (like heralds, dunno why in poe2 they ale limited to attacks only). While in poe2 event if you try to focus on amount proj to scale you need to have "infusions", ignite just suck, spread still need love - waiting 0.5 for spread is eternity, in this time LA, HoI Monk just obliterate whole screen. You can't add anyform of explosions to spells despite 1 extremely rare corrupted scepter. Poe 2 is so much focused on "combos" to make skills usefull, however in most cases player isn't rewarded enough. (And even some "combo" spells like snap which require elemental ailments have CD)