Technically it's not card advantage, because you'll wind up with the same number of cards after casting Witch's Mark as you started
At the beginning of your end step, create X 1/1 black Fungus creature tokens with "This token can't block," where X is the number of times you descended this turn
As a kicker, sending Des Gardius into the GY lets players activate The Mask of Remnants (Spell Card) from their deck and attach it to any face-up Monster on the opponents side of the field - taking control of it
Im a massive fan of Pokemon and The Pokemon TCG, and I always will be, but it feels like The Pokemon Company is doing everything it can to push me away
Since Knight can tutor Armed Dragon Thunder LV7 from the deck, this combo only requires one discard to Level Up to your LV10, giving you more cards in hand to play with and unlock a stronger end board
This includes the 80 main set commons (87%), the 10 common dual lands (10.9%), and the 2 borderless commons (2.1%)