Is Tentacool good in Pokemon GO?

Yes. Tentacool is B-tier for Little Cup.

What are the best Tentacool IVs for Little Cup?

The rank-1 Little Cup spread is 2/15/14 (Attack/Defense/HP), which reaches the 500 CP cap at level 19. Low Attack with high Defense and HP wins in capped leagues. Use the IV checker on this page to rank your own copy among all 4,096 spreads.

Is Tentacool a good raid attacker?

Tentacool ranks #252 of 283 water attackers with 4.7 DPS. That is outside the top 15, so it is not a raid priority.

Should I evolve Tentacool?

Tentacruel is B-tier for Great League. Evolve the copy with the best IVs for that role and transfer spare Tentacool for candy.

Can Tentacool be shiny in Pokemon GO?

Yes. Shiny Tentacool is available from photobomb, research, wild. A shiny is worth keeping for the collection no matter its IVs.

Is Shadow Tentacool worth keeping?

Shadow Tentacool hits 20% harder and takes 20% more damage. It has no ranked role of its own, so treat it like a normal copy.

#072 · Generation 1

Tentacool

water poison

Max CP (L40 / L50): 1,040 / 1,176
Raid catch CP (L20 / L25): 594 / 743
Research CP (L15): 446
Buddy distance: 3 km
2nd charged move: 50,000 dust · 50 candy

Shiny
Shadow
Tradable
Mega
Dynamax

Situational

Tentacool has a niche: B-tier Little Cup. Keep one with the right IVs and transfer the rest.

Battle roles

B
Little Cup#20 of 168 · score 82.8
It is ranked #20 in Little Cup on PvPoke with Poison Sting / Wrap / Water Pulse.
–
Great League#914 of 1154 · score 61.5
Ranked #914 of 1154; not competitive in Great League.

Worth evolving into

Tentacruel
B Great LeagueB Ultra League

Collection value

Shadow version exists: Shadows hit 20% harder and are worth a raid slot even with low IVs.

Tiers: S = meta-defining, A = strong, B = playable, C = niche. PvP from PvPoke overall rankings; raids from computed DPS/TDO within each attacking type; Max Battles from GO Hub tier lists.

Base stats

Attack97

Defense149

Stamina120

Base stats. Bars are scaled to the strongest Pokemon in the game.

Weak to

electric×1.6
ground×1.6
psychic×1.6

Resists

bug×0.625
fairy×0.625
fighting×0.625
fire×0.625
ice×0.625
poison×0.625
steel×0.625
water×0.625

Evolution line

Tentacool
→50 candyTentacruel

→ Tentacruel: 50 candy

Check your Pokemon's IVs

Ranks all 4,096 spreads for each league

Loading IV checker…

PvP rankings (GO Battle League)

League	Tier	Rank	Score	Recommended moves	Typical build
Little Cup	B	#20 / 168	82.8	Poison Sting · Wrap · Water Pulse	L19 · 2/15/14
Little CupShadow	B	#25 / 168	80.9	Poison Sting · Wrap · Water Pulse	L19 · 2/15/14
Great League	–	#914 / 1154	61.5	Poison Sting · Wrap · Water Pulse	L50 · 15/15/15
Great LeagueShadow	–	#944 / 1154	60.2	Poison Sting · Wrap · Water Pulse	L50 · 15/15/15

Source: PvPoke overall rankings. Score is relative to the league meta (100 = best). Typical build is the IV spread PvPoke assumes.

Raid attacker rankings

Attacking type	Tier	Rank	DPS	TDO	Best moves
waterShadow	–	#237 / 283	5.4	46	Bubble · Bubble Beam
water	–	#252 / 283	4.7	49	Bubble · Bubble Beam
normalShadow	–	#278 / 354	4.9	42	Bubble · Wrap
normal	–	#297 / 354	4.2	43	Bubble · Wrap

Level 40, 15/15/15, neutral target. DPS = damage per second, TDO = total damage output before fainting. Rank is among every Pokemon using that attacking type.

Moves

Fast move	Type	Raid power	Energy	Duration	DPS	PvP power	PvP energy	Speed
BubbleSTAB	water	10	+12	1.0s	10.0	8	+11	3 turns
Poison StingSTAB	poison	4	+6	0.5s	8.0	4	+9	2 turns

Charged move	Type	Raid power	Energy	Duration	Dmg/energy	PvP power	PvP energy	Effects
Bubble BeamSTAB	water	45	-33	2.0s	1.36	50	-50	100% chance: -1 foe Atk
Water PulseSTAB	water	65	-50	3.0s	1.30	80	-50
Wrap	normal	60	-33	3.0s	1.82	70	-45	100% chance: -1 foe Def

Questions people ask

Is Tentacool good in Pokemon GO?: Yes. Tentacool is B-tier for Little Cup.
Should I keep or transfer Tentacool?: Tentacool has a niche: B-tier Little Cup. Keep one with the right IVs and transfer the rest.
What are the best Tentacool IVs for Little Cup?: The rank-1 Little Cup spread is 2/15/14 (Attack/Defense/HP), which reaches the 500 CP cap at level 19. Low Attack with high Defense and HP wins in capped leagues. Use the IV checker on this page to rank your own copy among all 4,096 spreads.
Is Tentacool a good raid attacker?: Tentacool ranks #252 of 283 water attackers with 4.7 DPS. That is outside the top 15, so it is not a raid priority.
Should I evolve Tentacool?: Tentacruel is B-tier for Great League. Evolve the copy with the best IVs for that role and transfer spare Tentacool for candy.
Can Tentacool be shiny in Pokemon GO?: Yes. Shiny Tentacool is available from photobomb, research, wild. A shiny is worth keeping for the collection no matter its IVs.
Is Shadow Tentacool worth keeping?: Shadow Tentacool hits 20% harder and takes 20% more damage. It has no ranked role of its own, so treat it like a normal copy.

PoGo Dex is free and gets fresh data every week. If it saved you from a bad transfer, you can buy me a coffee.

Donate on Ko-fi

Verdict: Situational