This is my first sub here, so if I did anything wrong please tell me! The OP didn't clarify much, but given the "Custom Elements" section in the Spreadsheet I figured I could re-do Barrage. Though there were only abilities there... so if it's not allowed please tell me.
Exeggutor [Optimized]
Abilities: Clorophyll/Analytic (Harvest)
Stats: 95 / 80 / 100 / 125 / 90 / 50 [540 BST]
Added Moves: Barrage (Changed effect: Psychic Type, Special, 25 BP, 90% Acc., 32 PP, After dealing all the hits raises Defense and lowers Speed one stage (Scale Shot clone))
Summary of Changes: -15 Attack, + 15 Defense, + 15 SpD., -5 Speed (total +10 BST)
Description: Exeggutor doesn't need much not to suck. All it takes is a little more bulk, an ability that doesn't rely on Sun, and something that allows it to abuse its low Speed stat (although not the slowest in the meta). Its once cut Signature Move comes back as something that allows it to proveit his new Analytic ability even more by making it slower and sturdier. I was going to moderately boost it's Special Attack but decided against it since the Analytic boost makes up for it. The stat changes resume to lowering what was low, and making it sturdier like a chonky tree should be.
Marowak [Optimized]
Abilities: Rattled/Lightning Rod (Skill Link)
Stats: 80/80/110/50/100/65 [BST: 485]
Added Moves: Shadow Bone, Rock Blast, Arm Thrust
Summary of Changes: +20 to all stats minus Atk, Def and SpA.
Description: Man I love me some Skill Link. Meet the only Skill Link Bone Rush user ever! It has arms so Arm Thrust is reasonable and if you can't picture it using Rock Blast, imagine it using the bone as a bat to launch them. On a more serious note, I guess you can switch into a resisted Psychic move with Rattled as well because of the poor speed...(It fits flavor wise because it's traumatized from it's childhood experiences.) But I still like Skill Link better.
Emolga [Optimized]
Abilities: Static/Unburden (Motor Drive)
Stats: 75 / 75 / 80 / 105 / 80 / 105 [BST: 520]
Added Moves: Stuff Cheeks (because of its Shield dex entry), Nasty Plot
Summary of Changes: +20 HP, Def, SpDef, + 30 SpA, +2 Speed
Description: You're probably wondering why it's such a (relatively) small stat boost. Emolga gets a fantastic
gimmick new strategy in Unburden Stuff Cheeks, which solves two problems: it's not stellar speed (albeit on the faster side) and fairly frail bulk too (but also not terrible, barely). Since the SPA boost, while not small, doesn't help much, I'll also give it Nasty Plot, which allow it to run Stuff Cheeks Nasty Plot + two attacks as kind of a double dance set... kinda. If it runs a Petaya Berry it's basically a Tail Glow boost! (is this busted?)
Golduck [Optimized]
Abilities: Technician/Serene Grace (Swift Swim)
Stats: 80 / 115 / 80 / 75 / 80 / 105 [BST: 540]
Added Moves: Heart Stamp
Summary of Changes: + 33 Attack, +2 defense, -20 SpA, +20 Speed
Description: You must be thinking these are nonsense abilities but Pokédex entries describe it as a
skilled and
graceful swimmer. You run either Technician Flip Turn/Heart Stamp or Serene Grace Scald/Heart Stamp I guess. Hope you like flinching :^)
If Heart Stamp is deemed anti-flavor I'll remove it though, on a more serious note. I don't think it is given it rescues people, and as such is "hearty". But what do I know?