To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Fire Crystal's first ability)
Its going to be a 7/7 or 8/8 on average, and its a good way to spend your mana late game

Commander : Loran, Disciple of History Creatures : Anafenza, Kin-Tree Spirit, Angel of the Ruins, Brass Secretary, Copper Gnomes, Crovax, Ascendant Hero, Daring Archaeologist, Daxos, Blessed by the Sun, Foundry Inspector, Hollow One, Hope of Ghirapur, Ironsoul Enforcer, Jhoiras Familiar, Konda, Lord of Eiganjo, Kongming, Sleeping Dragon, Liberator, Urzas Battlethopter, Loran of the Third Path, Losheel, Clockwork Scholar, Oswald Fiddlebender, Rebbec, Architect of Ascension, Reveillark, Salvage Scout, Sigrid, God-Favored, Sojourners Companion, Spirited Companion, Steel Seraph, Teshar, Ancestors Apostle, Treasure Hunter, Yomiji, Who Bars the Way, Zetalpa, Primal Dawn Artifacts : Avacyns Memorial, Cloud Key, Commanders Sphere, Conjurers Closet, Dispellers Capsule, Hedron Archive, Heros Heirloom, Ingenuity Engine, Inspiring Statuary, Mind Stone, Platoon Dispenser, Semblance Anvil, Sword of the Chosen, Tenza, Godos Maul, Thran Temporal Gateway Enchantments : Day of Destiny, Flickerform, Teleportation Circle Planeswalker : Ugin, the Ineffable Instants : Astral Confrontation, Banishing Stroke, Mana Tithe, Path to Exile, Swell of Courage, Your Temple Is Under Attack Sorceries : Akromas Vengeance, Austere Command, Board the Weatherlight, Mine Excavation, Refurbish, Search for Glory, Sevinnes Reclamation, Urzas Ruinous Blast Lands : 27 Plains, Ancient Den, Darksteel Citadel, Desert of the True, Drifting Meadow, Guildless Commons, Inventors Fair, Reliquary Tower, Secluded Steppe, War Room Loran Recursion for Beginners One thing that I certainly value in a Commander deck is when they can play the role of an introduction to a specific archetype

We have the card lists for his builds here: Ruby Sapphire: DKP Shark Burn 4x Tipo Growing Son 4x Gramma Tala Keeper of Ancient Stories 4x Maui Hero to All 4x Maui Half-Shark 4x Tamato Happy as a Clam 1x Hades Infernal Schemer 2x Sisu Empowered Sibling 4x Develop Your Brain 2x Hide Away 4x Sail the Azurite Sea 4x Vision of the Future 2x Brawl 4x How Far Ill Go 4x A Pirates Life 4x Be Prepared 4x Pawpsicle 1x Merlins Carpetbag 4x McDuck Manor Khang said familiarity was his strength with this deck
Safe Haven Azurite Sea's Amber and Ruby deck has a delightfully simple premise
WBG: Modified Midrange Another strategy that centers smaller creatures, but with more flexibility in how fast or slow you can play