Adive = Advice

First three waves are easy. After that I last about 5 seconds. :P

I figure an whole mess of ballistas would help but the only way to do that is to keep going back and getting my ass kicked over and over, slowly gaining 1 or 2 medals at a time, slowly building up ballistas.

Anyone have any better ideas?

NVM! That's what that Mana is for, summoning more ballistas. God I'm stoopid! :P

BTW, is there any point to actually doing this other than boredom? It doesn't effect the over all game does it? Make the Wall of Flesh or Hard Mode any easier?

There's some unique loot, but you need to progress through Hard Mode to unlock the bosses that drop those items.

The event has 3 stages. The first stage, which happens before you've killed your first mechanical boss, is basically easymode but doesn't really provide anything except a couple of pets and 5 defender medals. It's nice to get a usable sentry summon before hardmode, though.

The second stage is where it gets interesting. That's how you get more medals faster, hardmode tower weapons, and hardmode summoner armors that have extra functionality with their specific tower type. This is what I consider to be the "true" event, and the earlier one is more like a tutorial.

The third stage occurs after you've beaten the Golem. This one is extra-hard, but has loot similar to what you'd get from a moon event. The weapons from the dragon boss are particularly interesting, and some of the armor (like the upgraded squire chestpiece) have unusual effects.