Here: Creatures (23) Lands (26) Spells (12) Mysteriously, I sense this is not the only three-cost green enchantment that makes 1/1 tokens when the condition is met in this set Crawling Sensation is another delirium enabler (thanks to the self-mill ability) and a payoff for your other delirium enablers (giving you random 1/1s here and there)
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The fact that Wizards dedicated a whole Commander deck to it proves as much
More ways to remove counters include Ferropede, Medicine Runner, Power Conduit, Scholar of New Horizons, and Vampire Hexmage
It provides excellent utility and allows someone to quickly draw cards
Three mana for a 3/3 with haste and trample is a strong card that any aggressive deck would be happy to play