Needing a water type

I want a water type because they are adaptive. I mainly want to use Ice Beam for Dragons. Garchomp cant go toe to toe physically with others but it can handle the rest reasonably well.
I am open to suggestions on changes to the team. This team does have a 2016 vibe to it and a first draft as well. Only have done a couple battles with them.

Garchomp @ Rocky Helmet
Ability: Rough Skin
Level: 50
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Dragon Claw
- Protect
- Earthquake
- Rock Slide

Gengar @ Focus Sash
Ability: Cursed Body
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Bomb
- Shadow Ball
- Will-O-Wisp
- Taunt

Talon is a VGC 16 copy. Willing to adjust
Talonflame @ Life Orb
Ability: Gale Wings
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Brave Bird
- Flare Blitz
- Tailwind
- Quick Guard

I like using Klefki for speed control and status protection

Klefki @ Sitrus Berry
Ability: Prankster
Level: 50
EVs: 240 HP / 72 Def / 16 SpA / 180 SpD
Bold Nature
IVs: 0 Atk
- Safeguard
- Metal Sound
- Flash Cannon
- Thunder Wave

Tapu Bulu @ Grassium Z
Ability: Grassy Surge
EVs: 252 HP / 196 Atk / 4 Def / 36 SpD / 20 Spe
Adamant Nature
- Wood Hammer
- Horn Leech
- Superpower
- Protect

Talonflame has fallen from grace because of the nerf to Gale Wings (it now works only if Talonflame is at full health). I don't think it's worth using nowadays.

If you want to have Water Pokemon on your team, there's Gyarados, which can provide Intimidate support, as well as Tapu Fini, which can solve the Dragon problem, and Milotic, which discourages Intimidate with Competitive:

Gyarados:
-Dragon Dance
-Waterfall
-Ice Fang/Earthquake
-Protect
Nature: Jolly
EVs: 84 HP/252 Atk/4 Def/4 SDef/164 Spe
Item: Lum Berry
Ability: Intimidate

Tapu Fini:
-Substitute
-Calm Mind
-Muddy Water/Protect
-Moonblast
Nature: Calm
EVs: 252 HP/44 Def/196 SAtk/4 SDef/12 Spe
Item: Leftovers

or
-Hydro Pump
-Moonblast
-Muddy Water
-Dazzling Gleam
Nature: Modest
EVs: 252 HP/20 Def/164 SAtk/44 SDef/28 Spe
Item: Choice Specs

or
-Hydro Pump
-Moonblast
-Nature's Madness
-Heal Pulse/Protect
Nature: Calm
EVs: 244 HP/84 Def/140 SAtk/28 SDef/12 Spe
Item: Sitrus Berry

Milotic:
-Scald
-Ice Beam
-Recover
-Protect
Nature: Calm
EVs: 252 HP/76 Def/172 SAtk/4 SDef/4 Spe
Item: Leftovers/Sitrus Berry
Ability: Competitive

Maybe Toxapex? You don't have a tank, so it looks rather well suited for you're team. Well, it can learn ice beam, but no one learns it ice beam because it has a better move pool, for it's defense and special defence.

Darkbirt said:

Maybe Toxapex? You don't have a tank, so it looks rather well suited for you're team. Well, it can learn ice beam, but no one learns it ice beam because it has a better move pool, for it's defense and special defence.

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No. Toxapex is too passive for doubles. Tapu Fini does the bulky Water role better because it has actual offensive presence and has STAB Moonblast/Dazzling Gleam to deal with Dragons. Read my post above yours for more.

Araquanid is a good contender too for a Water type in doubles. Can't be burned, has strong STAB and is incredibly slow to help against the Trick Room match up.

Frozocrone said:

Araquanid is a good contender too for a Water type in doubles. Can't be burned, has strong STAB and is incredibly slow to help against the Trick Room match up.

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Ive noticed that it has popular in Smogon VGC battles

It's worth considering. You've got speed control against fast teams but nothing against Trick Room.

Frozocrone said:

It's worth considering. You've got speed control against fast teams but nothing against Trick Room.

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Ya I noticed that as well. Ive also made adjustments and switches. Prankster wasnt getting me anywhere I needed to be and Klefi terrible offense presence became a liability. I made 3 switches Started using Eevee and its Z move and installed a taunt with Tapu LeLe. Which was one of my replacements. I am getting more desirable results but still needs more testing.