By freeing up your inkwell and increasing your hand, Diablo's abilities make him a valuable card in Song decks
While this makes them much more threatening and makes their triggered abilities easier to resolve, Kolaghans triggered ability wont be useful in a singleton format
You'd need something evasive like trample, menace, or flying to guarantee the land
Ive tried out Nadir Kraken, The Locust God, and other token makers, but I think triggers off spells are the most reliable space for this deck
Sinkhole is also devastating in this position because if you skip their turn and follow up with Atlantean Fate or Smokestacks of Gnaak on the next turn, you can disrupt all of their sites
Sorcery Color tag templates(None) Nyxbloom Ancient Trample If you tap a permanent for mana, it produces three times as much of that mana instead