Je ferai tout ce qui est en mon pouvoir pour t'aider
Fell the Profane is good, Malakir Rebirth is good, Boggart Trawler could sneak in some graveyard hate, Kazuul's Fury could be cute and steal a game, Bloodsoaked Insight is decent in big-mana decks
That said, between ramps ubiquity in Commander, the fact that ramping one land for 2 mana has been good enough for many cards to see consistent play in the format for years, and the risk that Deep Gnome Terramancer will be a dead card is minimal at best, and Id call it a safe bet youll come out ahead far more often than not when playing this card
You do get it for another turn, though, so your opponents can't just tap their [[Sol Ring]] and fully deny the effect
Even if none of the above options we've spoken about suit your needs, there may be something out there for you.
The deck wins primarily by trading its bad creatures, like the Thrull tokens from Endrek Sahr, Master Breeder, for someone elses good creatures and getting value from Jon Irenicuss abilities