What's a good example of an aspirational boss in PoE? I don't remember them, but last I played was a while ago.
There's 10-20 aspirational bosses in PoE depending on how geared up a player likes to be before portal rushing a boss. For example, The Shaper used to be an aspirational boss but on softcore trade, it's quite easy to gear yourself up to essentially power creep the fight. You still have to have to dodge the mechanics on most builds, which is why it's debatable as to whether it should be included or not.
I would say the best examples of aspirational bosses in PoE are Aul and The Feared. The deeper you go in the delve mines, the harder Aul gets. It sucks that you have no control over what random modifiers the encounter gets though.
The Feared is a Maven Invitation of 5 previously classic aspirational bosses: Shaper, Elder, Atziri, Cortex, and Chayula. They've had a few of their abilities removed as they simply wouldn't work in a different fight. Maven will randomly increase the difficulty by cloning a boss temporarily or slowing the player, etc. The player can decide how hard the fight will be by changing the map affixes. This includes releasing all 5 at once. They typically start at 2 and are staggered out on a timer. There are atlas passives that can double the effectiveness of the map affixes.
Until this league, The Feared all at once was the build showcase fight. Aul can be harder, but that's more difficult to obtain. With Uber version of many previous aspirational bosses, the build showcase is probably Uber Sirus(bullshit), Uber Searing Exarch, and Uber Eater of Worlds. The latter two can have map affixes, and atlas passives can double their effect. A build that can survive Uber Exarch's or Uber Eater's "avoid this or die" moves while they have 40% increased action speed is probably the best way to show off a build currently.
