The Golgari are the guild of reanimated rot, kudzu-encrusted corpses and mossy mausoleums. It's only fitting that one of the most basic types of Golgari foot soldier is the plant zombie, a zombie of bone and tattered flesh held together with creeping vines, moss and fungus.
Golgari plant zombies
Elves of a certain mindset are drawn to Guild Golgari -- those who find the usefulness of death compatible with the flourishing of life. Here are some style guide sketches of Golgari elves and some of the creatures they ride.
Golgari guild elves
Here's a page full of sketches of gear and weaponry of the Golgari elfkind. Note the preponderance of improvised weapons made from dead creatures or scavenged items -- carved bone, hollowed-out shells, petrified wood, the faceplate of some unfortunate bygone wurm.
Golgari elf gear and weapons