How to get the max reward from the event dungeon (>= 450 Points):
Don't spam skill randomly, this dungeon has nothing to do with your eq or strength, basically a lvl 10 char can reach max points.
Focus only on the mobs wich trigger an explosion (candle, heart, sugar dispenser(?)), there is no need to attack the other mobs.
An Explosion of these mobs cuts the hp in halp of every mob in range and also is able to spawn new explosion mobs.
After starting the dungeon you want to wait 10-15 seconds for mobs to span, try to hurt explosion mobs until they only have half hp left.
To start a chain reaction kill an explosion mob and make sure that other explosion mobs with half hp are in its range.
If you manage to start a chain reaction you can literally stand there and watch your points go up.
Push explosion mobs in each others range with your characters normal walking/running.
Only kill explosion mobs to start of a chain reaction, the other times only hurt them to half hp or push them around.