If youre looking for creature types that have the most creature type synergy , you cant go wrong with allies, slivers, and vampires
Arcbound Bruiser Arcbound Condor Arcbound Crusher Arcbound Fiend Arcbound Hybrid Arcbound Javelineer Arcbound Lancer Arcbound Mouser Arcbound Overseer Arcbound Prototype Arcbound Ravager Arcbound Reclaimer Arcbound Shikari Arcbound Slasher Arcbound Slith Arcbound Stinger Arcbound Tracker Arcbound Wanderer Arcbound Whelp Arcbound Worker Blaster, Combat DJ Blaster, Morale Booster Modular Monstrosity Power Depot Scrapyard Recombiner Zabaz, the Glimmerwasp
Thats very good to stabilize a board by itself, like Ishkanah, Grafwidow would do 10 years ago
I sure think so
Keep in mind the Ashlings rummage ability continues to work past third resolutions, so if you have a way to, you can keep casting instants or sorceries
A quick note: were going to skip the Iconics, because, of course, those are the most valuable