Copper Draconian (Kapak)

This creature is notorious for its lethal poison. It does not have a breath weapon like a dragon's. Instead, the kapak drools its yellow poison on its weapons, then uses those weapons in battle. The kapak's poison is also released when the kapak bites someone. The poison quickly infects and paralyzes its victim. The poison will wear off in about an hour, but in most battles, an unmoving foe makes an excellent target. Most poison victims do not survive a bite from a kapak.

these guys sound kool. again from my book (A Practical Guide to Dragon Riding © Lisa Trumbauer)