mtg shadowheart commander deck Let's Build a Shadowheart, Dragon Cultist Deck! Find Secret Lair Drop Sacrificing Everything for My Queen!

A repeatable modal effect that can help with card selection, life gain, or by chipping away at your enemies

Summon: Leviathan and Sygg's Command let you maximize the impact of a few key merfolk, and Eclipsed Realms becomes a rainbow land for merfolk spells and their activated abilities

Put it on an opposing Cabal Coffers, Academy Ruins, Kor Haven or Gaea's Cradle to turn it into a Swamp, so it's opposing land control as well

However, several factors can also influence this number, such as mana tutors, card ramp spells, cantrips, mana curve, and MDFCs (Modal Double-Faced Cards)

Magus Lucea Kane is an interesting alternate commander that seems to be some type of human-Tyranid hybrid