While this may be an uncommon draw requiring a very specific combination of cards and mana, the deck is very capable of producing relatively common Turn 4 kills
(Worth noting is that when Infested Thrinax enters the battlefield for the second, third, and so on time each turn, whether through this loop or some other means, each instance of Saproling creation will stack, so you start generating Saps faster with each loop.) Infinite mana, tokens, enters/leaves the battlefield (or leaves the graveyard, hello Insidious Roots!) effects for you to use how youd like
As always, I will be grouping each of the new commanders into the decks they premiered in
At the beginning of your upkeep, this creature deals X damage to target opponent previously dealt damage by it, where X is the number of infection counters on it
Barbflare Gremlin This badly named four-drop 3/2 first strike and haste is next
MAKE THE READS TO MAKE THEM BLEED Theres a tendency to think of blue permission decks as the most cerebral of Magic strategies, but I think that black discard decks are an even better fit for players who like to outwit their foes