Zapperfin
Small • Beast • Unaligned
Armor Class 12
Hit Points 14 (4d6)
Speed 0 ft., swim 40 ft.
Initiative +2 (12)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 6 (-2) | 14 (+2) | 10 (+0) | 2 (-4) | 9 (-1) | 4 (-3) |
Damage Resistances lightning
Senses darkvision 60 ft., passive Perception 9
Languages –
CR 1/4 (XP 50; PB +2)
Water Breathing. The zapperfin can breathe only underwater.
ACTIONS
Bite. Melee Weapon Attack: +4, reach 5 ft. Hit: 4 (1d4 + 2) piercing damage.
Electrified Tail Fin. Melee Weapon Attack: +4, reach 5 ft. Hit: A Small or smaller target is grappled (escape DC 8) and restrained while grappled this way. If the target is Medium or bigger, the zapperfin attaches to it instead. The attached zapperfin moves with the target whenever the target moves, requiring none of the zapperfin's movement. The zapperfin can detach itself by spending 5 feet of its movement on its turn. A creature, including the target, can use its action to detach the zapperfin.
While grappled this way or while the zapperfin is attached, Constitution Saving Throw: DC 10 (with disadvantage if grappled or attached by multiple zapperfins), the target at the start of each of its turns. Failure: The target becomes paralyzed until the end of its turn.
BONUS ACTIONS
Luring Gaze. Wisdom Saving Throw: DC 10, one creature within 30 feet of the zapperfin that can see it. Failure: The target becomes charmed until the end of its next turn. While charmed this way, the target must spend its turn moving as close to the zapperfin as possible. Success or Effect Ends: The target becomes immune to all zapperfins's Luring Gaze for 1 hour.
Zapperfin
Small • Beast • Unaligned
Armor Class 13
Hit Points 38 (7d6 + 14)
Speed 0 ft., swim 40 ft.
Initiative +3 (13)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 6 (-2) | 16 (+3) | 14 (+2) | 2 (-4) | 9 (-1) | 4 (-3) |
Damage Resistances lightning
Senses darkvision 60 ft., passive Perception 9
Languages –
CR 2 (XP 450; PB +2)
Water Breathing. The zapperfin can breathe only underwater.
ACTIONS
Multiattack. The zapperfin makes two Bite attacks. It can replace one of these attacks with a use of Electrified Tail Fin.
Bite. Melee Weapon Attack: +5, reach 5 ft. Hit: 8 (1d10 + 3) piercing damage.
Electrified Tail Fin. Melee Weapon Attack: +5, reach 5 ft. Hit: A Small or smaller target is grappled (escape DC 8) and restrained while grappled this way. If the target is Medium or bigger, the zapperfin attaches to it instead. The attached zapperfin moves with the target whenever the target moves, requiring none of the zapperfin's movement. The zapperfin can detach itself by spending 5 feet of its movement on its turn. A creature, including the target, can use its action to detach the zapperfin.
While grappled this way or while the zapperfin is attached, Constitution Saving Throw: DC 12 (with disadvantage if grappled or attached by multiple zapperfins), the target at the start of each of its turns. Failure: The target becomes paralyzed until the end of its turn.
BONUS ACTIONS
Luring Gaze. Wisdom Saving Throw: DC 12, one creature within 30 feet of the zapperfin that can see it. Failure: The target becomes charmed until the end of its next turn. While charmed this way, the target must spend its turn moving as close to the zapperfin as possible. Success or Effect Ends: The target becomes immune to all zapperfins's Luring Gaze for 1 hour.
QUICK REFERENCE
USING MONSTER VARIANTS
Monster variants allow the GM to adjust encounters to better match the party’s strength, narrative needs, or world-building logic. A weaker variant may represent a juvenile, wounded, or lesser specimen, while a stronger variant can serve as a leader, champion, ancient creature, or apex predator.
Variants can be used to fine-tune difficulty without changing the core identity of the monster, making them ideal for scaling encounters, reinforcing hierarchy within a faction, or creating memorable boss-style enemies. You can even use the same stat block but different variants in the same encounter if you want.
Design Note. Each monster is primarily balanced around its normal version. Weaker and stronger variants are derived adjustments and may not always preserve every tactical nuance or “feel” of the original creature. GMs are encouraged to review variants carefully and adjust abilities or tactics as needed to best suit their table.