Wormhole ( Legendary item )

I have idea to make item which can spawns creeps trought game 1. variant : Have a 1,5 % chance on kill to spawn one random creep (mass/normal/Eldritch cultist/Treasure Goblin or flying) 2. variant : have a 4% chance to spawn one random creep (mass/normal/Eldritch cultist/Treasure Goblin or flying) at start of new wave 3. Variant : Skill : Summon a random creep (mass/normal/Eldritch cultist/Treasure Goblin or flying) Cost 500 000 gold 4. variant : Every 60 seconds spawn one random creep (mass/normal/Eldritch cultist/Treasure Goblin or flying) -10 seconds on tower level 25 -10 seconds on tower level 70 -10 seconds on tower level 99 So this is idea to get more cultist and normal creeps on regular levels and also in survival to get chance to send wave of cultists by Necromonion and get some items after last Horseman.Goblins can be removed and stats can be updated