Still, its a safe bet to start out with any artifact which lets Trazyn untap itself for three mana or less: Retrofitter Foundry, Basalt Monolith, Pili-Pala, Staff of Domination any and all of which should make Trazyn lethal once you get Gilded Lotus or Sceptre of Eternal Glory into the bin with them
Rampant Growth | Illustration by Steven Belledin Ramp gives you more mana than you'd normally have at any given point in the game , considering that you can make only one land drop each turn
Golgari Grave-Troll and other dredge cards replace your draw with milling, letting you dump tons of cards into your graveyard
Cards that let you play a spell when you discard, like Loxodon Smiter, were designed as an answer to discard effects like Liliana of the Veil
Definitely, the ultimate Demigod of Revenge