Intuitive design and clear instructions can significantly reduce the learning curve
Four Imperial Recruiters might be a little slow, it might be better to have more Skyclave Apparitions or other removal spells instead of some of them, and a few other numbers could be tweaked, but I think this is a really good starting point
Day becomes Night if the previous player didnt cast any spells on their turn
This card gains the following effects if there is a "Eldritch Summoner" on the field when it's activated: -This card's effects can't be negated
And thats not all: remove flying counters from your creatures placed on them by Luminous Broodmoth, slow down the aging of Cumulative upkeep cards, like Mystic Remora (or Blizzard, if you feel like putting flying counters on opponents creatures like a monster), allow Undying creatures to continually un-die the (giant robotic manta in the) skys the limit
SR Super Rare D/D Gryphon X DARK Level 4 [ FiendPendulumEffect ] ATK 1200 DEF 1200 P Scale 1 You can target 1 Fiend monster you control
