Thanks for the good laugh, and oh believe me, it's not just me or zymo. You became kind of a meme, for the comp community.
Another cool gimmick I've been experimenting with on my alt, is darm lead with zoroark, zoroark gets flamethrower as stab so he can take some value from sun, also mixed with sucker punch is pretty cool, and wallbreaks almost everything on the meta with some exceptions.
Also there's a few pretty cool revenge killers, 252+ Atk Guts Conkeldurr Mach Punch vs. 4 HP / 0 Def Cloyster: 72-86 (57.1 - 68.2%) -- guaranteed 2HKO +2 252 Atk Cloyster Ice Shard vs. 252 HP / 0 Def Conkeldurr: 58-69 (27.3 - 32.5%) -- guaranteed 3HKO after burn damage
Even if you drain punch on his icicle spear, he has 7% chance to take you out, and you 1hit guaranteed.
252+ Atk Choice Band Technician Scizor Bullet Punch vs. 4 HP / 0 Def Cloyster: 51-61 (40.4 - 48.4%) -- guaranteed 3HKO
arguably not as good, but depending on the chip damage he has, can be cool.
Viable tier walls for cloyster,
+2 252 Atk Cloyster Rock Blast (5 hits) vs. 248 HP / 252+ Def Marvel Scale Milotic: 65-80 (32.3 - 39.8%) -- guaranteed 3HKO after burn damage
+2 252 Atk Cloyster Icicle Spear (5 hits) vs. 248 HP / 252+ Def Marvel Scale Milotic: 45-60 (22.3 - 29.8%) -- approx. 68.5% chance to 3HKO after burn damage
haze removes the threat of his setup.
Thorn is a given.
From those, milotic could be cool, you could even go gimmicky and pack hp fire, under the sun, it's guaranteed a 1hko, as well as threatning some checks, like magnezone.
You can also lead lucario, so many options, some more viable than others, some very gimmick, some that usually aren't played as lead, but they get the job done.
This aside, biggest flaw imo about sun teams is that they're very one dimensional, and dont have a big boy fire kabutops anywhere, or a wall breaker like excadrill that melts a good portion of the meta even without setup (both tops and exca, tops even without SD, 2hkos the entire meta iirc), and the sun setter is a bit fragile, compared to big boy hippo, ttar or pelipper.