They'll passively pick up loyalty by using these abilities, keeping them in play for a lot longer. Use big creatures (Sheoldred, Doomgape, Tetzimoc.) Try some equipement on them (Swiftfoot Boots, Sword of. Mana (35 lands + 8 ramp cards as a Sakura, Cultivator, Kodamas Reach.) Lot of creatures, and maybe tokens. This is especially great for Planeswalkers with zero-cost abilities, like Tyvar Kjell Garruk, Cursed Huntman and Ugin, The Spirit Dragon. Artifact (1) Budget Golgari Commander (EDH) dech with 'deathtouch' theme.

Every ability is effectively 'cheaper', with negative abilities taking less of a chunk out of your 'walkers, and positive ones having more of a boost to your loyalty. The second benefit does apply more specifically to Planeswalkers, but having loyalty abilities cost +1 loyalty extra is something a lot of unaware players might trip over, thanks to it being framed more like a negative. Being able to get chaff off the top of your library is always a good move, and for four mana Carth does it excellently.

I was thinking of ways to improve it and one of them was to have a ton of. You don't need to hit a Planeswalker card with it, and if you do you can just opt to put it on the bottom of your library along with the rest. Alright, so I just made my first EDH deck and its a pretty ty golgari dredge. However, Carth has two incredible abilities that make him a real powerhouse. A black/green Planeswalker-heavy deck might sound a bit limited, especially when you consider how many of Golgari's strategies care more about creatures.

Golgari dredge scavange edh deck