While it might be counterintuitive, Dredgevine actually got worse with the release of Golgari Grave-Troll, posting fewer results than it did in the previous years while Golgari Grave-Troll was banned (possibly because players were scared of Golgari Grave-Troll and made sure to pack graveyard hate)
Too Few Lands Fix: Many new players run 32-34 lands
Magic pulls from mythologies and historical imagery but that doesnt justify something that appears to glorify or even reference modern hate
[card]Overlaid Terrain[/card] Okay, seriously
This way, you're likely to wind up killing more of your opponent's creatures and fewer of yours (card advantage!), and you're in a position to recover faster than your opponent after the Gaze of Granite
Aftermath, flashback, harmonize, and jump-start each exile the cast cards upon resolution of the ability