In addition to being the new lord of the undead, the Dimir god could also prove worthwhile as a mill commander
Thassa, God of the Sea is a fine choice
As to why that is important, these cards which talk about Pirates dealing damage and spreading out combat are actually leading a tightly-woven tapestry of Cascade enablers and Time Counter payoffs, all with an Elemental tribal/typal subtheme
Illustrated by Paul Scott Canavan Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
Then, you cast Aerith and tap Cauldron, exiling a different creature, attempting to put a +1/+1 counter on Aerith

Blue/Green Landfall Creature (35) 1x Arbiter of the Ideal 1x Avenger of Zendikar 1x Baloth Woodcrasher 1x Budoka Gardener Flip 1x Calcite Snapper 1x Coiling Oracle 1x Courser of Kruphix 1x Embodiment of Insight 1x Frontier Guide 1x Goliath Sphinx 1x Grazing Gladehart 1x Guardian of Tazeem 1x Jaddi Offshoot 1x Meloku the Clouded Mirror 1x Murkfiend Liege 1x Oran-Rief Hydra 1x Patron of the Moon 1x Rampaging Baloths 1x Rashmi, Eternities Crafter 1x Roil Elemental 1x Sakura-Tribe Scout 1x Scythe Leopard 1x Skyshroud Ranger 1x Snapping Gnarlid 1x Soratami Mirror-Mage 1x Soratami Rainshaper 1x Sphinx of Jwar Isle 1x Territorial Baloth 1x Tideforce Elemental 1x Turntimber Basilisk 1x Undergrowth Champion 1x Uyo, Silent Prophet 1x Walking Atlas 1x Wave-Wing Elemental 1x Windrider Eel Land (40) 1x Blighted Woodland 1x Coral Atoll 14x Forest 1x Halimar Depths 14x Island 1x Jungle Basin 1x Khalni Garden 1x Mosswort Bridge 1x Oboro, Palace in the Clouds 1x Oran-Rief, the Vastwood 1x Reliquary Tower 1x Rogue's Passage 1x Simic Growth Chamber 1x Thawing Glaciers Enchantment (7) 1x Khalni Heart Expedition 1x Rancor 1x Retreat to Coralhelm 1x Retreat to Kazandu 1x Seed the Land 1x Trade Routes 1x Vapor Snare Sorcery (3) Commander (1) Instant (8) 1x Counterspell 1x Deprive 1x Giant Growth 1x Groundswell 1x Harrow 1x Negate 1x Summoning Trap 1x Sunder
