Kha'Zix wishes he could be as adaptive as Tahm Kench
I'm not sure if anyone has pointed this out, but one of Tahm Kench's biggest strengths is his versatility in the laning phase.
Against Poke or all in? Max E to sustain through their damage (and spirit visage lets you completely ignore it), or activate the shield to shut down any kill potential your enemy has
Want to poke yourself? Max Q for a solid poking skill that gets even stronger at 6
Want to fight? Max W for %max health nuke that'll put a dent in anyone you use it on
Kha'Zixs kit simply feels incomplete until you get all 3 evolutions, and there is always a optimal way to grab them no matter the matchup or enemy comp (although that optimal order does change as he gets buffed/nerfed).
If we ever get around to reworking Kha'Zix I hope Riot looks at Tahm Kench's kit to get an idea of what an adaptive champion should play like.