Swords doesnt need any synergy or support
Judge Magister Gabranth Ready for your white/black creature or artifact aristocrat deck, this judge has a ruling ready to menace your foes, especially in limited
Finally, the deck features a number of utility spells including mana rocks, strong removal effects, card draw effects, and anthem effects for your artifacts
The Old Formula With that in mind, let's go to Yidris' EDHREC page and see how folks usually build him: Yidris doesn't have Signature Cards
Booster Tutor Combat Tutorial Cruel Tutor Demonic Tutor Diabolic Tutor Enlightened Tutor Goblin Tutor Grim Tutor Idyllic Tutor Infernal Tutor Lo and Li, Twin Tutors Mystical Tutor Personal Tutor Profane Tutor Rhystic Tutor Sylvan Tutor Vampiric Tutor Worldly Tutor
But those are just my anecdotes