Pet Battle: [13-14] Badlands; [13-14] Tanaris; [23-24] Twilight Highlands
Looks around, sniffing air with tongue.
100% Hit Chance
Bites at the enemy, dealing 394 Beast damage.
Instantly deals 295 Beast damage and Poisons the target for 98 additional Elemental damage per round for 5 rounds.
Deals 197 Beast damage and reduces the target's speed by 25% for 4 rounds.
Deals 394 Humanoid damage.
Deals 197 additional Humanoid damage if you were struck this round.
80% Hit Chance
Burrow under the ground, becoming unattackable for one round.
On the next round, you attack, dealing 689 Beast damage.
Deals 295 Beast damage. Damage increases by 98 each time it hits. Max 492 Beast damage.
Beasts deal 25% extra damage below half health.
50% from Mechanical abilities
33% from Humanoids abilities
I was farming all battle pets in Eastern Kingdom, using an addon (CollectMe), telling me all wild pets / zone. I started in EPL (I'm a DK, so that was easy). And made my way down south. When i was in badlands, i couldn't find a rattlesnake. So i checked this side and I read that there were plenty in Twilight Highlands, so i gave up on searching.
Then just when I wanted to leave the badlands, I found a rattlesnake all the way up in the mountains on the border with the Burning Steppes.
For anyone looking for a rare, try Tanaris, I don't know if it's the zone or pure luck but I've stumbled upon 3 Rattlesnake rares across the region in the span of maybe 30 minutes.
There are a lot of Rattlesnakes to be found near the river (pretty much in the river) in Twilight Highlands. I've battled about 30 and I haven't found any rares yet.. Only uncommon. Hopefully I will find one soon :)