mtg commander decks universes beyond Magic: The Gathering Lord of the Rings Tales of Middle-earth – CromaTCG This ready Magic The Gathering - Final

You can also pay one extra mana when casting them to turn a land into an Island as long as Tide Shaper stays on the battlefield

The moment you discard a card with madness, its ability triggers

Imotekh the Stormlord Imotekh the Stormlord helps black get aggressive with their artifact creatures

By the way, BGU mana cost is also quite fitting (at least for me), possibly representing Sin's connections to oceans (blue), death (black), and the natural cycle it's strangely bound to (green)

One red mana deals 3 damage to any target

I would feel almost entitled to run this in mono white, given the color can still sometimes feel like its punching up, but what makes white decks able to utilize this well is the lifegain that white can do very well