Scorching Skin  

This spell is very useful when chain cast on your pet or your tank with pyrilen skin on mobs you simply can't land spells on even after malo. It's semi-mana efficient and when you chain both of them the DPS is actually quite decent.

Also good for training everything on your pet, using granite stance and chain casting Pyrilen skin. Low chance of aggro (unless you felt daring and made a train you had to heal your pet on).

Just be sure when you use it with your pet that you throw in a little damage of your own (I typically use the lava or molten orb from DoN)