I can add also that if for example in 1 day its killed only 1500 yielo, in next day after ss u need kill only 500 to spawn mage, not like 2k everyday if mage isnt killed.
Also if someone killed 250 yielo, got access anytime to mage if he didnt killed it. So becareful when u killing yielo, becouse someone can just login to check mage, kill him and run.
But even if world killed 2k yielo, need kill this Energized Raging Mage to spawn normal mage.
For spike drop is tottal lottery, 1 guy can got after 1 mage, other after 100 mages, and also u can kill 300 mages and still didnt loot spike.
But find for example 2-3 ppl to do with u every day - like 500 yielo per person its less then 1h