Skarrgan Hellkite is going to go right into my Lathliss, Dragon Queen and might even be a reason to add in an infinite mana combo or two
Multiple cards sacrifice creatures to grow your board, but the decks not so token-heavy that it can just toss fodder away, and you dont really want to pump up your board at the expense of losing your creatures
If you're looking for more instant-speed removal, Wear/Tear , Stroke of Midnight , and Beast Within are good additions with a lot of flexibility.
Cards like Soul Warden and Soul's Attendant provide a steady stream of life, but you can have some impressive turns with something like Children of Korlis to pay all your life twice
Ghost ArkGhost Ark is a powerful new vehicle that grants unearth for three mana to every artifact creature in your graveyard when you crew it
Schedule and report a day-of Learn to Play event whenever a Welcome Deck is used to teach a new player