Honestly they need more effects like myriad landscape and focus on basic land ramp.
Non-color restricted land ramp can help the non-green decks not get removed from the game via a vandalblast/bane of progress/ruination/back to basics. Some cards like burnished hart can be playable in some tables, but it's hardly effective to allow early game plays. If nothing else was cast before it, then essentially your playing a 2/2 on turn-3, praying that it survives, sac'ing it on turn-4, and then in turn-5 you might have 7 lands. It's a 2-turn 6cmc explosive vegetation.
I don't think that the color pie should be distorted so that non-green decks get farseek efficiency, but more hard-to-deal-with effects like myriad landscape would be a massive boon to any non-green deck that isn't trying to combo win before turn 5.
Another often overlooked option is rings of brighthearth and fetch lands. A bit expensive to invest in all fetches, but it works with the budget ones too. The problem with this is again reliant on an artifact that can easily be answered by 4/5 of the colors, finding it to use it, opponents seeing it for anything past a combo part, and not expanding fetchlands up to this point.
Non-color restricted land ramp can help the non-green decks not get removed from the game via a vandalblast/bane of progress/ruination/back to basics. Some cards like burnished hart can be playable in some tables, but it's hardly effective to allow early game plays. If nothing else was cast before it, then essentially your playing a 2/2 on turn-3, praying that it survives, sac'ing it on turn-4, and then in turn-5 you might have 7 lands. It's a 2-turn 6cmc explosive vegetation.
I don't think that the color pie should be distorted so that non-green decks get farseek efficiency, but more hard-to-deal-with effects like myriad landscape would be a massive boon to any non-green deck that isn't trying to combo win before turn 5.
Another often overlooked option is rings of brighthearth and fetch lands. A bit expensive to invest in all fetches, but it works with the budget ones too. The problem with this is again reliant on an artifact that can easily be answered by 4/5 of the colors, finding it to use it, opponents seeing it for anything past a combo part, and not expanding fetchlands up to this point.
Links to my most current deck lists;
Primary EDH; Rakka Mar Token Perfection, Crosis Mnemonic Betrayal, Cromat Villainous, Judith Gravestorm, Rakdos Empty Storm, Exava Artifacts, Bant Trash, & Fumiko Voltron!
EDH kept at home; Ruzzian Isset & Rakdos LoR!
EDH (nostalgic/pimp/retired) in storage;
Latulla Burns, Akroma Smash, Jeska Voltron, Rakdos Storm, Bladewing Darghans, Lyzolda Worldgorger, Xantcha Steals your Heart, Jori Storm, Wydwen Permission, Gwendlyn Paradox, Jeleva Warps, & Sigarda Brick!
Legacy Showanimator and High Tide!