You see Orc Rider
"Orc arga Huummmak!"; "Grrrrrrr".
Notes
These mounted orcs are strong but can be tricked with Invisibility. They don't drop Wolf Paws. Orcish Axes can easily be looted and sell for a good price to NPCs.
Damage Taken From Elements
Physical 
Death 
Holy 
Ice 
Fire
Energy
Earth
Location
Orc Fort, Orc Peninsula and also near Dark Cathedral, Zao Orc Land.
Strategy
If You are a Mage, use Invisible and runes, Stoneshower or GFB are useful because Orc Riders are usually found in groups, premium mages should try to use Terra Strike if possible to minimise waste.
Loot
0-90 gp, 0-3 Meat, Orc Leather, Torch, Backpack, Wolf Tooth Chain, Orcish Axe, Studded Helmet, Battle Shield, Scale Armor (semi-rare), Orc Tooth (rare), Obsidian Lance (rare), Warwolf Fur (rare) Reins? (Very Rare?).