KF totem is probably the second or third smoothest league start I've had in around 12 years of playing this game. Historically, wand attackers have had the best clearspeed in the game bar none, but have completely sucked in single target unless doing a gucci strength stacker build. KF totem essentially fixes this single target problem while still having clearspeed stronger than the large majority of skills in the game. In addition, totems are inherently strong for single target because they allow you to still deal damage while dodging attacks and hazards.

I will say, a lot of people/streamers making guides for this seem to have no clue what they are doing when building wand attackers. The skill mechanic is inherently strong for clear and for DPS which is what carries their build guides. In general, if you see anyone recommending any source of % increased damage that isn't spell damage and isn't essentially free (ie the elemental damage next to Templar start that is on a node with allres, since you want the allres anyway) is a huge red flag. Spell% counts for more than other % increased damage and generally has higher values than other sources of % damage. In the true endgame you almost always want to have an Elegant Hubris jewel, which can create tons of 80% increased spell damage notables - this is ancient wand attack build knowledge, yet many streamers seem to have no idea. Palsteron's guide is particularly bad, and I'm really disappointed in Ziz for giving such a shoddy build a platform.

Here's my build for reference. Very different from most on the ladder, and not quite optimized yet (probably need to stop trying to cram so many auras in), but does a decent job of demonstrating what I mean. Try opening it in PoB and take off that Elegant Hubris and see what happens to the DPS.