Cards that I have relatively few of: White : Pacifism (7), Divine Favor, Divine Verdict (6), Captains Call (3) Blue : Wind Drake (6), Scroll Thief, Welkin Tern, Mind Sculpt, Encrust (5) Black : Lilianas Shade, Walking Corpse (5) Thats my analysis of M13
This is something you can learn from and apply to your own designs: consider a subtle texture or pattern to break up a blank background but don't allow it to distract from the main content
One such case is this 1999 Charizard with a Holo Error, one that also holds an extremely high grade of a PSA 9
The rarer the card, the less chance of finding one in real life
Aerith Rescue Mission Rarity: Common TYPE: Sorcery SUBTYPE: - CMC: 4 Mana cost: USD: $0.16 EUR: 0.10 TIX: 0.03 EDHREC RANK: 12011 Choose one Take the Elevator Create three 1/1 colorless Hero creature tokens