One of the items that is overlooked in this event is the humble Elixir. However, it can be used to create a flurry of Super Elite Guard arrivals.

Using all the pero you get from guard kills (I usually get over 1 million pero in these events) you can buy Elixirs to get rid of regular guards and keep rolling for the Super Elite Guards. If enough finders do this at once we can create a huge list of Super Elite Guards.

I'm not suggesting to do it all the time, as this could result in loss of pero over the long run. But if you have a bunch of Elixirs doing nothing in your inventory, this is how to use them.