Ick Swamp is a very easy place thanks to it's awesome drops so I'm not sure if any strategy is needed for that dungeon, but I'd like to share it cause it's so fun to try:
Is that a strong vampire? How about now?
Stack damages and lifesteal like crazy and everything becomes a bloodcow!
The idea came from PQI sending me there for a warmoonger run, and I spiced it up. With the usual tranmsutaion scroll + Namtar's ward + less glyphs CP frenzy prep it was set up for greatness. I also took the perseverance badge to boost my damage, the weakening/corrosion cure potions so I can kill whatever I want, and Patches for anything but more mana.
Funny thing is I could have made my character even stronger if I had better shops: I only found a single good CP fodder and 0 useful items. One of my shops had the spoon
When you try it out don't forget to cut all the mana burn/poison plants as soon as possible, they give spoons and cannot hurt you. When you discovered most of the map kill all the corrosion plants you see for more spoons, if you do it during a fight it heals you too, then drink your burn salve before taking a hit.
Another fun thing to try in Ick is playing it with an Orc Warlord with prepped Patches and Soul Orb + your preferred stuff.
That always results in something hilarious: