The Tera Fairy Tera Blast Kingambit in Question.
I've done it. I created this demon of a set. I love it and hate it at the same time
Kingambit @ Assault Vest
Ability: Supreme Overlord
Tera Type: Bug
EVs: 252 HP / 88 Atk / 168 SpD
Adamant Nature
- Iron Head
- Sucker Punch
- Grass Knot
- Kowtow Cleave
Ok. Ok. Now you might be wondering: why the hell is this thing Tera Bug and Grass Knot? Dw I'll get to it in a second.
When you think of Kingambit, what's the first thing that comes to mind? Probably some max max spread tbh. That and endgame cleaning. This is a set that is meant for lategame and only lategame.
ITS WORTH MENTIONING
- It can work at both 4 and 5 mons down. 3 creates a roll for Gholdengo with Sucker Punch to KO.
- Stealth Rock and Spikes are preferred to not be on the field as that creates more rolls.
- The EVs are made for a specific scenario. You can adjust them to any place you find fitting by way of an endgame or even a 1v1
Now you're ready to see the scenario.

and

vs

,

,

&
Picture This: It's the SPL Finals. You are facing a full health Great Tusk, Iron Valiant, Rotom-Wash and Gholdengo. It sounds really, REALLY bad for you especially now that you have 4 mons down and a Kingambit in the back. You sacrificed a rocky helmet Corviknight to get in Kingambit for free. Now what? You need to win but you aren't confident you can. Luckily you saved the tera on Kingambit in case you needed it.
Unfortunately you to a Volt Switch from Rotom Wash. You know the Meowscarada you have can beat the Rotom-Wash, but it can't beat much else. They bring in Great Tusk. Now it's game time
Turn 1: You Terastallize Kingambit into a Bug Type. You Grass Knot the Great Tusk and it takes a massive chunk of damage as they went for Earthquake - dealing a solid chunk to your health but nothing you can't take.
252 Atk Great Tusk Earthquake vs. 252 HP / 0 Def Tera Bug Kingambit: 70-83 (17.3 - 20.5%) -- possible 5HKO
Possible damage amounts: (70, 71, 72, 72, 73, 74, 75, 76, 77, 78, 78, 79, 80, 81, 81, 83)
0- SpA Supreme Overlord 4 allies fainted Tera Bug Kingambit Grass Knot (120 BP) vs. 252 HP / 4 SpD Great Tusk: 238-280 (54.8 - 64.5%) -- guaranteed 2HKO after Leftovers recovery
Possible damage amounts: (238, 240, 242, 246, 248, 252, 254, 256, 260, 262, 266, 268, 270, 274, 276, 280)
321 HP remaining. You doubted you would KO the Great Tusk with Grass Knot since your final mon wasn't KOd. You are relieved when you see the roll.
Turn 2 starts. They revealed Ice Spinner vs your Landorus-Therian earlier so they click that and you KO the Great Tusk with Grass Knot.
252 Atk Great Tusk Ice Spinner vs. 252 HP / 0 Def Tera Bug Kingambit: 75-89 (18.5 - 22%) -- guaranteed 5HKO
Possible damage amounts: (75, 76, 77, 78, 79, 80, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89)
232 HP remaining. They were caught off guard by the Grass Knot reveal, and hesitated to switch in their next mon. They go into Iron Valiant after much thinking (at least you assume that). They were proven to have Close Combat and Thunderbolt earlier that match and also revealed Booster Energy
Speed. Turn 3 starts. They click Moonblast for some more chip as you easily KO with Iron Head. At this point they see the damage and rightfully assume you have Assault Vest.
252 SpA Iron Valiant Moonblast vs. 252 HP / 168 SpD Assault Vest Tera Bug Kingambit: 93-111 (23 - 27.4%) -- 62.7% chance to 4HKO
Possible damage amounts: (93, 94, 96, 97, 97, 99, 100, 102, 102, 103, 105, 106, 106, 108, 109, 111)
88+ Atk Supreme Overlord 4 allies fainted Tera Bug Kingambit Iron Head vs. 0 HP / 0 Def Iron Valiant: 402-474 (139.1 - 164%) -- guaranteed OHKO
Possible damage amounts: (402, 404, 410, 416, 420, 426, 428, 434, 438, 444, 450, 452, 458, 462, 468, 474)
121 HP remaining. Your heart is racing. A lot is on the line here. They switch into Gholdengo. They don't deal enough with Rotom Wash and they need to get rid of Kingambit. Everything comes down to this.
Turn 4 starts. Being safe, you click Sucker Punch. However, they click Trick with Gholdengo and Sucker Punch fails.
Great. Now you have to gamble on EV spreads as well. You're confident that they aren't bulk invested since they are scarfed, and they can't stall out Sucker Punch effectively unless they switch. But either way it goes, both of you know your chances of victory are slim to none.
Turn 5 starts. You click it. They stayed in trying to call your switch, but Sucker Punch KOs the Gholdengo!
88+ Atk Supreme Overlord 4 allies fainted Tera Bug Kingambit Sucker Punch vs. 0 HP / 4 Def Gholdengo: 336-396 (106.6 - 125.7%) -- guaranteed OHKO
Possible damage amounts: (336, 338, 342, 348, 350, 354, 360, 362, 366, 372, 374, 378, 384, 386, 390, 396)
252 SpA Gholdengo Make It Rain vs. 252 HP / 168 SpD Assault Vest Tera Bug Kingambit: 127-150 (31.4 - 37.1%) -- 83.4% chance to 3HKO
Possible damage amounts: (127, 129, 130, 132, 133, 135, 136, 138, 139, 141, 142, 144, 145, 147, 148, 150)
Make It Rain would've KOd. Thankfully, you didn't lose the Sucker Punch war and your opponent was being aggressive. Even if it was no investment, the Make It Rain would have a 3/8 chance to KO.
0 SpA Gholdengo Make It Rain vs. 252 HP / 168 SpD Assault Vest Tera Bug Kingambit: 105-124 (25.9 - 30.6%) -- guaranteed 4HKO
Possible damage amounts: (105, 106, 108, 109, 109, 111, 112, 114, 115, 117, 117, 118, 120, 121, 123, 124)
Then again, you might have a higher chance of victory without all the high rolls. Your opponent knows they can't win with just a Rotom Wash. They forfeit, and you win the Smogon Premier League. You celebrate this moment and it'll go down in history.
If you made it this far, thank you for reading this
Picture This: post. I might make more of these in the future - maybe make this little storytime-esque thing something I'm known by. Appreciate any and all feedback for my set.