Most of the best colorless cards cost a lot of mana to play, and Zhulodok gives them all double cascade, meaning they'll bring along two other spells for free, giving you three spells for the price of one
Based on the latest market prices tracked on TCG Stacked, Ponder is worth about $14.74 USD
It also brings some pain if people want to kill your creatures, with the enchantment version of Zulaport Cuthroat (which is reprinted in the deck), Bastion of Remembrance
Cards like True-Name Nemesis and White Plume Adventurer spent time dominating Legacy due to how unbalanced they became in 1v1, and the monarch has had a deep, lasting impact on Pauper
I often carefully examine cards made by other Pokmon TCG official illustrators, and I sometimes make it a goal to reach their level