Is Sanar, Innovative First-Year a good replacement commander for when your playgroup gets sick of Prosper
Sacrifice after III.) I, II Jecht Beam Each opponent discards a card and you draw a card
Glarb, Calamity's Augur Glarb, Calamity's Augur is very reminiscent of Augur of Autumn, as both allow you to play lands and creatures from the top of your library if you meet their conditions
One card of any rarity is traditional foil
Celes, Rune Knight Celes is a great Mardu graveyard commander, providing card advantage, an easy way to get cards into your graveyard, and a payoff for returning creatures to the battlefield after you discard them
The new Illumineer's Quest: Deep Trouble set is designed as a standalone item, and no other cards are required in order to play its adventure, although building new decks to use in the game is encouraged