Zato city grid allows this to guarantee 1 core damage, combined with other cards like Tyr, you can easily deal lots of core damage, and with the grid that deals core damage when an agenda is scored, the runner will take core damage whether they steal it or not. Combine this with cards like EOTL and punitive to flatline the player, or you can even do 6+ core damage, that's 3 tyrs which is unlikely, however you can still do core damage in other ways like pneoneutria.