Need a 4th move for my Venusaur

[killerjaw01]

I have a Venusaur with Toxic and Leech Seed.
I am planning to give him Body Slam when I reach Sevii Islands.
I need a 4th move. I was thinking about Earthquake (as a counter for Fire pokemon) but I was also thinking of giving him a defensive move such as Light Screen. Any suggestions?
I was also thinking about making him hold Leftovers.

 

[SneazzL.com]

Venasaur@Leftovers
Leech Seed
Toxic
Earthquake (yes)
Sludgebomb

 

[BasiltheDragon]

I'd say:

@Lefties
Leech Seed
Toxic
Sludge Bomb
Body Slam

 

[FireHead Hank]

Venusaur @ Leftovers
Careful Nature
-Leech Seed
-Synthesis
-Sleep Powder
-Sludge Bomb

The best Venusaur set IMO.

 

[GeminiDragon]

Venasuar
leech seed
razor leaf/giga drain
toxic/sludge bomb
Earthquake

 

[EmbersBackUpSinger]

@lefties
Sunny Day
Sythnis
SolarBeam
Sludge Bomb.

 

[kingferret53]

Venusaur w/ leftovers

Razorleaf
Earthquake
Sludgebomb
Leech seed

 

[WhiteWizard42]

FireHead Hank's set for the win. anyone suggesting EQ on venusaur without curse/SD is on crack.