Over on Brudiclad, Telchor Engineers table, you have a few copy spells such as Quasiduplicate and Mechanized Production from recent sets as well another iteration of Saheeli as Saheeli, Sublime Artificer to produce the tokens you need to fuel Brudiclads second ability
However, two commanders that caught my eye might bear consideration: Ertai, the CorruptedErtai, the Corrupted needs a creature or an enchantment to sacrifice in order to counter a spell
If you really want to commit to the Sirens Call and Angels Trumpet idea, you can springboard off the Mandate of Peace idea and just play Peacekeeper and other cards that prevent creatures from attacking
Green Goblin on his glider doesnt get in the way of Doc Ocks tentacles, and Venom can be lurking anywhere for a chance to strike they all have their own space in the scene to shine
It actually felt like it had depth and power in the way a goblin deck does