Essential characteristics a) the markings must be easily read by you as magician b) the markings must not be easily detected by your audience So a marked deck must look as normal as possible, so that it won't draw attention to itself or give away the secret, and the markings must not be obvious to the lay-people you are performing to
Let's look at the thematic elements of the deck instead
Lightning Helix "Basically the awesomest card ever." Life gain gets no respect, because when you invest mana and cards in life gain it has the nasty habit of not making a difference, especially when you're trying to play a burn-heavy game, which either involves trying to burn out an opponent or all opposing creatures

GET ALL 4 FINAL FANTASY-THEMED COMMANDER DECKSFINAL FANTASY VI: Revival Trance, FINAL FANTASY VII: Limit Break, FINAL FANTASY X: Counter Blitz, and FINAL FANTASY XIV: Scions & Spellcraft BATTLE ALONGSIDE ICONIC FINAL FANTASY HEROESJoin forces with Terra, Herald of Hope in the Revival Trance deck, Cloud, Ex-SOLDIER in the Limit Break deck, Tidus, Yunas Guardian in the Counter Blitz deck, and Yshtola, Nights Blessed in the Scions & Spellcraft deck NEW CARDS + ALL NEW ARTEach ready-to-play deck contains 100 cards featuring new FINAL FANTASY-themed art, including 25 Commander cards entirely new to Magic: The Gathering FOIL LEGENDARY CARDSEach deck also includes 2 Legendary Creature cards with a shiny Traditional Foil treatment that can be played as your commander COLLECT SPECIAL ALT-BORDER CARDSEvery deck also comes with a 2-card Collector Booster Sample Pack containing 2 alternate-border cards of rarity Rare or higher, at least 1 of which is a shining Traditional Foil EPIC MULTIPLAYER BATTLESMagic: The Gatherings most popular play format, Commander is a multiplayer way to play Magic, an epic, free-for-all battle full of strategic plays and social intrigue for 35 players Contents: This bundle includes all 4 FINAL FANTASY-themed MTG Commander Decks
