I cant think of a current interaction that breaks Kurkesh, though unique combo cards like this are among the most enticing spec opportunities because they can be broken at any point
Where these cards rank in the format is a major concern
Koll enables us to go infinite with enter the battlefield triggers, or even just Goblin Bombardment
Additionally, for a cost of two generic mana, one white mana, and one blue mana, you can tap and sacrifice Skybridge Towers to draw a card
And if your opponents are drawing eight cards between their end step and next upkeep with their Mystic Remora, why not throw more card draw around
Every time a permanent is sacrificed, every creature you control receives a +1/+1 counter, particularly effective when you have a huge swarm of Insects to benefit from the boost