My testing for SCG Syracuse has brought me to this list, which is very close to the list from above with some minor changes: Creatures (18) 4 Simian Spirit Guide 4 Magus of the Moon 4 Goblin Rabblemaster 1 Pia and Kiran Nalaar 1 Hazoret the Fervent 4 Legion Warboss Planeswalkers (4) Lands (18) Spells (20) I made some changes to the sideboard based on advice from others, as well as a desire to have some additional card advantage elements in the sideboard
I also think a build focused not on Slivers but on Lords (creatures that give a bonus to a specific type of creature) might be more powerful and could be just as fun
That may sound obvious, but many people seem to be having trouble making it happen
Once again, playing cards for free is a great reward
Later, you can get one of the best cards exiled with Sothera for free
Like the Amonkhet lands, the Triomes have basic land types, so you can search them up with fetchlands