Elemental Archon isn't strong enough for the cost

Elemental Archon isn't strong enough for the cost.
The amount of passive skill investment required to get the portion of uptime isn't valuable for the buffs you get.

On-off buffs need to be very strong because they're inconsistent (sometimes annoyingly).

It's good when it's on, especially for the movespeed and the more solid power.
But for the sheer number of passives I would hope for much more uptime.

Just checked on poeninja and it seems EA nodes are being used 0.0% of the time.

Suggestion:
More Archon Recovery Period % reduction in the nodes could make this appealing.

Personally, I like Archon for bossing, the one triggering on spending 100% of your mana. It complement nicely Sigil of Power Setup. You can also have it by having a skill that can inflict Ignite (with the Lineage Support Gem).

But it's true than other than that, it's quite lackluster. The downtime is too punishing to be reliable while mapping even when we invest in it (20s by default). It also make investing too much into it not worth the effort.

The downtime should at least be cut to half (10s) to be viable while mapping. If it was meant to be a buff only useful during Boss, make it trigger when we hit a "Unique Enemy" while buffing its efficiency (especially the point on the passive tree).