If there was ever a piece of ice that explained what to use Eliza's Toybox for, it was this. It big, it's scary, and the runner is not going though this with a plan and serious dedication. Because the surprise of running into Wotan is never going to do damage, it's the perfect Ice to rez outside of a run. Add in a Heinlen Grid and the runner must break this ice with a breaker without some very specific setups (such as having 3 credit on cashe to take off after losing all their credits).
It's a piece of ice you need to build you deck to support, but it's something that will stop the runner hard for a while and can open up a scoring window when they were expecting something a bit less absurd.
For added benefit, put an advanceable trap behind this to really crush the runner spirit after they've spent so much to get in.