Remember successful cards and packages and keep an eye out for new contexts for them - Here I started with the Risen Reef/Master of Waves decks I had had success with in the past as a potential home for the Arid Archway, Spelunking, Arboreal Grazer, Three Steps package I wanted to try

If you arent sure of where to begin, here are a few other example Commander Deck strategies to help you get started: My commander has an awesome ability that Id like to build around and support I want to play big creatures and spells with cool abilities then run over my opponents with raw power If my opponents dont have mana, anything I do is the most powerful thing at the table Im trying to assemble certain pairs or trios of cards that form an infinite loop that will win me the game Im trying to reduce all opposing libraries to zero cards I want to dictate which cards my opponents are allowed to cast so I can curate the most powerful board position My commander should be able to attack someone for 21 points of damage and take them out of the game Lets fill the board with as many tokens as possible and turn the swarm loose on my enemies There are a lot of cool creatures in x creature type lets build a tribal strategy and see where it takes us Planeswalkers are cool I bet I can build a deck around those People should attack each other more Ill make myself an unappealing and/or unavailable target so they do that Lets give everyone extra resources, but ultimately Im the one who should benefit most from them I could go on, but you get the idea here

He has now sold it for $16.492m, including buyer's premium, according to auction firm Goldin
And to find some really great decks worth crafting, try our MTG Arena deck guide.
If youre playing Isshin as a commander, leveraging attack triggers is the only way to go unless theres some other secret Samurai commander