This Izzet commander pairing clearly want to play in some sort of halfway build between being spellslinger and superfriends, as each of their ultimate abilities let you copy any instants and sorceries or activated abilities (which includes loyalty abilities)
Before we answer those burning questions, though, here are a few other handy guides for the avid trading card games fan
Eladamri is a solid pickup for Elves decks, like most pushed Elves these days
Countermagic : Mystic Snake, Frilled Mystic, Draining Whelk Reanimation : Karmic Guide, Phyrexian Delver, Extraction Specialist Milling : Manic Scribe, Thieves' Guild Enforcer, Sage's Row Denizen Self-Milling : Stitcher's Supplier, Satyr Wayfinder, Balustrade Spy Discard : Burglar Rat, Mesmeric Fiend, Sin Collector Goading : Insufferable Balladeer, Jeering Homunculus, Vengeful Ancestor "Gain Control" effects : Hostage Taker, Agent of Treachery, Gonti, Lord of Luxury Clones : virtually all of them, though a few are decently pricey
