Descent into Avernus is a great example of a card that has that group hug feel by giving everyone Treasure tokens, but the card is really just there to kill everyone, which is more slug than hug
Combo decks in cube always suffer compared to constructed versions of the decks to consistency issues
The Research Colorless ways to flicker include Conjurer's ClosetConjurer's Closet and Sword of Hearth and HomeSword of Hearth and Home, which are both excellent
Cards like Fiery Emancipation, City on Fire, and Ojer Axonil, Deepest Might, all increase the amount of damage your spells and wizards will be dealing
The most obvious of these factors is the synergy of haste with Saproling Burst, which was known to some as "The Fix." That extra turn almost doubled the strength of the Burst and made it hit for the full 20 damage in only two turns, which would normally mean a kill on turn five, or turn four if backed up by a Blastoderm
I considered every zombie worth playing while researching, but I had to narrow the list down somehow, so I ended up trimming a lot of dead weight