Weepinbell

Gloom occupies the same rung in Oddish’s parallel evolution line: middle stage, Grass with Poison, stuck there until someone brings it a stone. The difference is in the method. Gloom defends itself with smell; this one bites.

Its body is a yellow pitcher hanging from a curved stem, a dead ringer for the carnivorous plants that trap insects in a cavity filled with liquid. Pokédex entries insist on two weapons. The side leaves, which work like blades in battle, and the corrosive fluid it spits from its mouth. The usual procedure is to fire off Poison Powder first and dissolve the prey afterwards with Acid; when it’s hungry, it skips the protocol and swallows anything that moves.

The odd detail is at the back. A hook grows from its rear end, which it uses to hang from a branch at night while it sleeps, and if it’s disturbed in its sleep, it may wake up on the ground. At one metre tall and 6.4 kg, it weighs less than a house cat: inside, it’s mostly hollow and acidic.

The official category, Flycatcher Pokémon, undersells a creature that swallows things quite a bit bigger than a fly. It evolves from Bellsprout at level 21 and stays put until you use a Leaf Stone on it.

390 points spread with a clear idea and the wrong tools. Attack is 90 and Special Attack 85, near-twin figures that leave the choice open; everything else falls away, with 65 HP, 55 Speed, 50 Defense, and 45 Special Defense.

Chlorophyll is what holds the whole thing together: under sun, its Speed doubles, and that 55 goes from showing up late to getting there before almost everything else its size. Without sun, it gets nowhere. Its hidden ability, Gluttony, only makes it consume the Berry it’s holding sooner.

Swords Dance by TM fits its best stat, but its physical Grass-type arsenal arrives late and hits weakly. Razor Leaf, with 55 power, doesn’t show up until level 44, and Power Whip has to wait until level 58; Seed Bomb by TM is the obvious shortcut. Sucker Punch, an Egg Move, is the only priority move it’ll get. On the special side, it’s better served, with Energy Ball, Sludge Bomb, and Leaf Storm all available by TM.

What holds it back is its own typing. Grass and Poison overlap on offence and add up to four weaknesses on defence—Fire, Ice, Flying, and Psychic—with 50 and 45 in its defensive stats to take them. In the ninth-generation NFE tier, it sits in C tier, behind Ivysaur, and its specific niche is sun: Swords Dance under Sunny Day, something Gloom can’t set up. In a normal playthrough, its role is different: spreading poison with Toxic and Sleep Powder while you save up for the stone.

A single Egg Group, Grass, limits breeding to the plant kingdom or a Ditto. The gender split is 50%, so getting a female isn’t the bottleneck it is in other Kanto lines.

The 20 Egg cycles work out at roughly 5355 steps, and the egg always hatches into Bellsprout. The Egg Move list is long for a middle stage: Strength Sap and Venom Drench to lower the opponent’s Attack, Ingrain and Synthesis for recovery, plus Tickle, Clear Smog, and Sucker Punch. The last one is what justifies the effort; the rest are oddities.

Evolution has no hidden conditions. You reach level 21 and go no further until you use a Leaf Stone on it, with no minimum level, no time-of-day requirement, and no happiness involved. The stone works on the same turn you buy it, forcing you to decide when to use it: the level-up movepool is still worthwhile well after 21, with Acid at 24, Knock Off at 29, Gastro Acid at 39, and Poison Jab at 47.

In the wild, its habitat is the forest, and its catch rate, 120, sits in the middle: neither a freebie nor difficult. It gives 2 Attack EVs and grows at a medium-slow rate.