Pet Battle: [6-7] Hillsbrad Foothills; [10-11] Western Plaguelands; [14-15] Swamp of Sorrows; [22-23] Zul'Drak; [23-24] Twilight Highlands
Catches flies and jumps.
Vocalizations (on-click and while moving)
95% Hit Chance
Blasts the enemy with a spray of water, dealing 433 Aquatic damage.
100% Hit Chance
Licks the enemy 1-2 times, dealing 197 Critter damage per hit.
Hits an additional time if the user is faster than the enemy.
Restores 591 health to the user.
Restores 157 health to your team and calls down a cleansing rain for 9 rounds.
During a cleansing rain, the duration of hostile damage over time effects is reduced by 1 round and Aquatic abilities deal 25% more damage.
Deals 197 Aquatic damage and has a 25% chance to transform the target into a frog for 1 round.
Damage increases by 98 each time it is used. Max 492 Aquatic damage.
A swarm of flies attacks the enemy's active pet, dealing 137 Critter damage every round for 5 rounds. Persists through pet swaps.
Harmful damage over time effects are reduced by 50% on Aquatic pets.
50% from Flying abilities
33% from Undead abilities
I can confirm they come as a secondary to the water wavelings very frequently. Easy to farm one there.
While battling a Water Waveling in Zul'Drak an H/P rare Huge Toad turned up as a secondary. Approx 38.5, 73.9, Server - Draenor EU. There are many spawns of Water Wavelings and Huge Toads are frequently secondary pets, so the odds are good to find a rare if you are hunting for a high level one (he was demoted to level 20 by capture).
To echo Mâximus' comment, I found a Rare L24 Huge Toad in the Twilight Highlands. It was one of the two additional pets aiding a Scorpid, fought at the northwest end of the Verrall Delta (x64 y39).
as addon to spider near south pond in Zul'Drak
If you are looking in Hillsbrad for these, look along the river that cuts through the zone; lots of them hop around there!
If you are looking for a higher level one, they are also in Twilight Highlands.
Found quite a few along the river leading into WPL
found mine by southshore along with the maggots easy smeezy