(For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.) Hup, two, three, four, Dunno how to count no more. Illustrated by Scott M
If youve already got the necessary nonengine, or are playing at a level where its not strictly required, this is an awesome pickup if youre looking to have your duelist brain tickled

3 Raiden, Hand of the Lightsworn 3 Lumina, Lightsworn Summoner 2 Felis, Lightsworn Archer 2 Wulf, Lightsworn Beast 2 Lyla, Lightsworn Sorceress 2 Jain, Lightsworn Paladin 2 Garoth, Lightsworn Warrior 1 Minerva, Lightsworn Maiden 1 Ehren, Lightsworn Monk 3 Judgment Dragon 2 Gorz the Emissary of Darkness 2 Honest 1 Electromagnetic Turtle 1 Plaguespreader Zombie 3 Charge of the Light Brigade 3 Solar Recharge 2 Monster Reincarnation 1 Reinforcement of the Army 1 Monster Reborn 1 Harpies Feather Duster 2 Lightsworn Judgment 3 Minerva, the Exalted Lightsworn 1 Michael, the Arch-Lightsworn 1 Curious, the Lightsworn Dominion 1 Chaos Ruler, the Chaotic Magical Dragon 1 Black Rose Dragon 1 Black Rose Moonlight Dragon 1 Stardust Spark Dragon 1 Trishula, Dragon of the Ice Barrier 1 Mechquipped Angineer 1 Evilswarm Exciton Knight 1 Dark Rebellion Xyz Dragon 1 Knightmare Phoenix 1 Borrelsword Dragon
After his victory over "Don Zaloog", he kept the "Dark Scorpion" cards safe in there as well
The commander deck box set has 6 dividers for efficient organization